Address #1325 with a CREDITS-LEVELS file. (#1326)

Similar to CREDITS-MUSIC let's have a per level credits file.

CREDITS-LEVELS

@@ -0,0 +1,127 @@
+--Phase 1--
+
+Episode 1 - Outpost Outbreak
+    E1M1: Outer Prison by Gabriel "YukiHerz" Antonio
+    E1M2: Communications Center by acc
+    E1M3: Waste Disposal by Josef "Paar" Šustek
+        E1M9: Nutrient Recycling by Mortrixs19
+    E1M4: Supply Depot by GeekMarine
+    E1M5: Armory by Oleg "Wereknight" Vovk
+    E1M6: Training Facility by Luiz Henrique "Xindage" Gasparin Jeronimo
+    E1M7: Xenobiotic Materials Lab by Will "Kid Airbag" Hackney
+    E1M8: Outpost Quarry by Luiz Henrique "Xindage" Gasparin Jeronimo
+
+Episode 2 - Military Labs
+    E2M1: Elemental Gate by Luiz Henrique "Xindage" Gasparin Jeronimo and m
+    E2M2: Shifter by Hayden49
+    E2M3: Reclaimed Facilities by SUNPYG Senpai
+    E2M4: Flooded Installation by Luiz Henrique "Xindage" Gasparin Jeronimo
+    E2M5: Underground Hub by Luiz Henrique "Xindage" Gasparin Jeronimo
+        E2M9: Fortress 31 by Miguel "Z0k" Suarez Gomez
+    E2M6: Hidden Sector by Catoptromancy
+    E2M7: Control Complex by Luiz Henrique "Xindage" Gasparin Jeronimo
+    E2M8: Containment Cell by Luiz Henrique "Xindage" Gasparin Jeronimo
+
+Episode 3 - Event Horizon
+    E3M1: Land of the Lost by Jay "Jayextee" Trent
+    E3M2: Geothermal Tunnels by pan-te
+    E3M3: Sacrificial Bastion by Jeremy "SgtCrispy" Elder
+    E3M4: Oblation Temple by Mortrixs19 and Erick "GuyNamedErick" Tenorio
+    E3M5: Infernal Hallows by SUNPYG Senpai
+    E3M6: Igneous Intrusion by Archfile
+        E3M9: Acquainted With Grief by Angry Saint
+    E3M7: No Regrets by Robin "Hawkwind" Palmer
+    E3M8: Ancient Lair by Kim "Torn" Bach
+
+Episode 4 - Double Impact
+    E4M1: Maintenance Area by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M2: Research Complex by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+        E4M9: Operations by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M3: Central Computing by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M4: Hydroponic Facility by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M5: Engineering Station by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M6: Command Center by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M7: Waste Treatment by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+    E4M8: Launch Bay by Matt "RottKing" Cibulas and Ralph "Ralphis" Vickers
+
+
+
+--Phase 2--
+
+Cluster 1
+    MAP01: Hydroelectric Plant by Luiz Henrique "Xindage" Gasparin Jeronimo, Samuel "Blastfrog" Oliver and Eric "The Green Herring" Baker
+    MAP02: Filtration Tunnels by Stephen "Siggi" Finniss
+    MAP03: Crude Processing Center by Jeremy "SgtCrispy" Elder
+    MAP04: Containment Bay by Eric "The Green Herring" Baker
+    MAP05: Sludge Burrow by Patrick "Amarande" Kalinauskas
+    MAP06: Janus Terminal by Jay "Jayextee" Trent
+    MAP07: Logic Gate by Mortrixs19
+    MAP08: Astronomy Complex by Boris Iwanski
+    MAP09: Datacenter by Kristian "sajbear" Nilsen
+    MAP10: Deadly Outlands by Svante "Xerent" Ekholm
+    MAP11: Dimension Rift Observatory by Samuel "Kaiser" Villarreal
+
+Cluster 2
+    MAP12: Railroads by Miguel "Z0k" Suarez Gomez
+    MAP13: Station Earth by Jay "Jayextee" Trent
+    MAP14: Nuclear Zone by Jay "Jayextee" Trent
+    MAP15: Hostile Takeover by Miguel "Z0k" Suarez Gomez
+        MAP31: Be Quiet by Jay "Jayextee" Trent
+            MAP32: Not Sure by Catoptromancy
+    MAP16: Urban Jungle by Tom "Hyena" White
+    MAP17: City Capitol by Jay "Jayextee" Trent
+    MAP18: Aquatics Lab by James "Jimmy" Paddock
+    MAP19: Sewage Control by Jay "Jayextee" Trent
+    MAP20: Blood Ember Fortress by Devin "Lazer" Afshin
+
+Cluster 3
+    MAP21: Under Realm by Mortrixs19
+    MAP22: Remanasu by Boris Iwanski
+    MAP23: Underground Facility by Joel "Submerge" Poston
+    MAP24: Abandoned Teleporter Lab by Jay "Jayextee" Trent
+    MAP25: Persistence of Memory by Mike "Cyb" Watson
+    MAP26: Dark Depths by Nathaniel "GooseJelly" Patasky and m
+    MAP27: Palace of Red by DOGB01
+    MAP28: Grim Redoubt by Miguel "Z0k" Suarez Gomez
+    MAP29: Melting Point by Patrick "Amarande" Kalinauskas
+    MAP30: Jaws of Defeat by Robin "Hawkwind" Palmer
+
+
+
+--FreeDM--
+
+    DM01: Tech Test by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM02: Natural Selection by Jason "Hellbent" Root
+    DM03: Issues of Claveria by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM04: Steel by Dean "deathz0r" Joseph
+    DM05: Dense Fields by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM06: Temple of Ammon by Catoptromancy and Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM07: Main Stronghold by Jim "Rellik" McDougald
+    DM08: Artifact Base by Alexandre-Xavier "AXDOOMER" Labonté-Lamoureux
+
+    DM09: Industrial Outland by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM10: Detached Grounds by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM11: Isolated Facility by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM12: Up 'n' Down Canyon by Catoptromancy
+    DM13: Unholy Blood by Catoptromancy and Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM14: Technical Assault by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM15: Shallow Complex by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM16: Barren Alleys by Luiz Henrique "Xindage" Gasparin Jeronimo
+
+    DM17: Underwoods by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM18: Deserted Courtyard by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM19: Tech Isle by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM20: Warehouse by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM21: Refinery by Jim "Rellik" McDougald
+    DM22: Military Depot by Alexandre-Xavier "AXDOOMER" Labonté-Lamoureux
+    DM23: Confrontation by hex11
+    DM24: Flooded Base by Brett "Mechadon" Harrell
+
+    DM25: Mansion Yard by Catoptromancy
+    DM26: Acidic Crypt by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM27: The Exile by Jim "Rellik" McDougald
+    DM28: Weapons Facility by Jim "Rellik" McDougald
+    DM29: Unusual Territory by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM30: Last Man Standing by Dean "deathz0r" Joseph
+    DM31: Desolated Fort by Luiz Henrique "Xindage" Gasparin Jeronimo
+    DM32: Fourplay by Brett "Mechadon" Harrell