Removed NioTSO client and server

- NioTSO client isn't needed because we're using RayLib
- Added FreeSO's API server to handle most backend operations

server/FSO.Server.Database/DA/AvatarClaims/DbAvatarClaim.cs

@@ -0,0 +1,17 @@
+namespace FSO.Server.Database.DA.AvatarClaims
+{
+    public class DbAvatarClaim
+    {
+        public int avatar_claim_id { get; set; }
+        public uint avatar_id { get; set; }
+        public string owner { get; set; }
+        public uint location { get; set; }
+    }
+    public class DbAvatarActive
+    {
+        public uint avatar_id { get; set; }
+        public string name { get; set; }
+        public byte privacy_mode { get; set; }
+        public uint location { get; set; }
+    }
+}

server/FSO.Server.Database/DA/AvatarClaims/IAvatarClaims.cs

@@ -0,0 +1,21 @@
+using System.Collections.Generic;
+
+namespace FSO.Server.Database.DA.AvatarClaims
+{
+    public interface IAvatarClaims
+    {
+        DbAvatarClaim Get(int id);
+        IEnumerable<DbAvatarClaim> GetAll();
+        IEnumerable<DbAvatarActive> GetAllActiveAvatars();
+        int? GetAllActiveAvatarsCount();
+        DbAvatarClaim GetByAvatarID(uint id);
+        IEnumerable<DbAvatarClaim> GetAllByOwner(string owner);
+
+        int? TryCreate(DbAvatarClaim claim);
+        bool Claim(int id, string previousOwner, string newOwner, uint location);
+        void RemoveRemaining(string previousOwner, uint location);
+
+        void Delete(int id, string owner);
+        void DeleteAll(string owner);
+    }
+}

server/FSO.Server.Database/DA/AvatarClaims/SqlAvatarClaims.cs

@@ -0,0 +1,84 @@
+using Dapper;
+using MySql.Data.MySqlClient;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace FSO.Server.Database.DA.AvatarClaims
+{
+    public class SqlAvatarClaims : AbstractSqlDA, IAvatarClaims
+    {
+        public SqlAvatarClaims(ISqlContext context) : base(context)
+        {
+        }
+
+        public bool Claim(int id, string previousOwner, string newOwner, uint location)
+        {
+            try
+            {
+                Context.Connection.Query("UPDATE fso_avatar_claims SET owner = @owner, location = @location WHERE avatar_claim_id = @claim_id AND owner = @previous_owner", new { claim_id = (int)id, previous_owner = previousOwner, owner = newOwner, location = location });
+                var newClaim = Context.Connection.Query<DbAvatarClaim>("SELECT * FROM fso_avatar_claims WHERE avatar_claim_id = @claim_id AND owner = @owner", new { claim_id = (int)id, owner = newOwner }).FirstOrDefault();
+                return newClaim != null;
+            }
+            catch (MySqlException ex)
+            {
+                return false;
+            }
+        }
+
+        public void RemoveRemaining(string previousOwner, uint location)
+        {
+            Context.Connection.Query("DELETE FROM fso_avatar_claims WHERE location = @location AND owner = @previous_owner", new { previous_owner = previousOwner, location = location });
+        }
+
+
+        public void Delete(int id, string owner)
+        {
+            Context.Connection.Query("DELETE FROM fso_avatar_claims WHERE owner = @owner AND avatar_claim_id = @claim_id", new { owner = owner, claim_id = (int)id });
+        }
+
+        public void DeleteAll(string owner)
+        {
+            Context.Connection.Query("DELETE FROM fso_avatar_claims WHERE owner = @owner", new { owner = owner });
+        }
+
+        public DbAvatarClaim Get(int id)
+        {
+            return Context.Connection.Query<DbAvatarClaim>("SELECT * FROM fso_avatar_claims WHERE avatar_claim_id = @claim_id", new { claim_id = (int)id }).FirstOrDefault();
+        }
+        public IEnumerable<DbAvatarClaim> GetAll()
+        {
+            return Context.Connection.Query<DbAvatarClaim>("SELECT * FROM fso_avatar_claims");
+        }
+        public IEnumerable<DbAvatarActive> GetAllActiveAvatars()
+        {
+            return Context.Connection.Query<DbAvatarActive>("SELECT b.*, a.location FROM fso.fso_avatar_claims as a "+
+                "inner join fso.fso_avatars as b ON a.avatar_id = b.avatar_id;");
+        }
+        public int? GetAllActiveAvatarsCount()
+        {
+            return Context.Connection.Query<int>("SELECT COUNT(*) FROM fso_avatar_claims").FirstOrDefault();
+        }
+        public DbAvatarClaim GetByAvatarID(uint id)
+        {
+            return Context.Connection.Query<DbAvatarClaim>("SELECT * FROM fso_avatar_claims WHERE avatar_id = @id", new { id = id }).FirstOrDefault();
+        }
+
+        public IEnumerable<DbAvatarClaim> GetAllByOwner(string owner)
+        {
+            return Context.Connection.Query<DbAvatarClaim>("SELECT * FROM fso_avatar_claims WHERE owner = @owner", new { owner = owner });
+        }
+
+        public int? TryCreate(DbAvatarClaim claim)
+        {
+            try
+            {
+                return Context.Connection.Query<int>("INSERT INTO fso_avatar_claims (avatar_id, owner, location) " +
+                    " VALUES (@avatar_id, @owner, @location); SELECT LAST_INSERT_ID();", claim).First();
+            }
+            catch (MySqlException ex)
+            {
+                return null;
+            }
+        }
+    }
+}