feat: add embedded image loader for every supported game

src/Common/Game/IW4/IW4_Assets.h

@@ -1181,6 +1181,18 @@ namespace IW4
         int platform[2];
     };
 
+    enum MapType
+    {
+        MAPTYPE_NONE = 0x0,
+        MAPTYPE_INVALID1 = 0x1,
+        MAPTYPE_1D = 0x2,
+        MAPTYPE_2D = 0x3,
+        MAPTYPE_3D = 0x4,
+        MAPTYPE_CUBE = 0x5,
+
+        MAPTYPE_COUNT
+    };
+
     enum TextureSemantic
     {
         TS_2D = 0x0,
@@ -1197,6 +1209,19 @@ namespace IW4
         TS_WATER_MAP = 0xB,
     };
 
+    enum ImageCategory
+    {
+        IMG_CATEGORY_UNKNOWN = 0x0,
+        IMG_CATEGORY_AUTO_GENERATED = 0x1,
+        IMG_CATEGORY_LIGHTMAP = 0x2,
+        IMG_CATEGORY_LOAD_FROM_FILE = 0x3,
+        IMG_CATEGORY_RAW = 0x4,
+        IMG_CATEGORY_FIRST_UNMANAGED = 0x5,
+        IMG_CATEGORY_WATER = 0x5,
+        IMG_CATEGORY_RENDERTARGET = 0x6,
+        IMG_CATEGORY_TEMP = 0x7,
+    };
+
     struct GfxImage
     {
         GfxTexture texture;