graphics: Add endgame screen graphics.

Freedoom Phase 1 needs endgame screens for the ends of episodes
2, 3 and 4. Add some basic screens that are essentially just
screenshots from level 8 of each episode. Set END0-END6 to be the
dummy empty graphic so that the game doesn't crash after E3.

This (for the time being) fixes the most egregious problems in #32.

buildcfg.txt

@@ -933,10 +933,21 @@ WILV35	0	0
 WILV36  0       0
 WILV37  0       0
 WILV38  0       0
-VICTORY2	0	0
+
-PFUB1	0	0
+; Endgame screens:
-PFUB2	0	0
+VICTORY2
-ENDPIC	0	0
+PFUB1
+PFUB2
+ENDPIC
+
+; "The End" animation from E3 endgame screen:
+END0
+END1
+END2
+END3
+END4
+END5
+END6
 
 ; inter level map
 

graphics/endpic.gif

@@ -1 +1 @@
-ajapted/wimap1.gif
+fraggle/endpic.gif

graphics/fraggle/endgame.txt

@@ -0,0 +1,17 @@
+These are stopgap endgame screens created from screenshots of the last
+levels of each episode.
+
+VICTORY2: screenshot from E2M8 showing killed boss monster. I took this
+screenshot with the full brightness cheat on and "artificially"
+darkened it afterwards.
+
+PFUB1/2: screenshot from E3M8 showing killed boss monster. I took this
+in PrBoom+ at 640x480, then cropped it down into two 320x200 images
+that seamlessly scroll together. The marine sprite was added in
+afterwards.
+
+ENDPIC: screenshot from E4M8 showing killed boss monsters.
+
+All screenshots were taken with the game running in 640x480, and were
+resized to 640x400 to take into account Doom's aspect ratio issues.
+

graphics/pfub1.gif

@@ -1 +1 @@
-ajapted/bossback.gif
+fraggle/pfub1.gif

graphics/pfub2.gif

@@ -1 +1 @@
-ajapted/bossback.gif
+fraggle/pfub2.gif

graphics/victory2.gif

@@ -1 +1 @@
-ajapted/wimap2.gif
+fraggle/victory2.gif