Added modelviewer.

Added neural network code(turned off by default).
Lots of editor and rendering fixes.

neo/engine/renderer/Image.h

@@ -234,6 +234,8 @@ public:
 	textureDepth_t		depth;
 	cubeFiles_t			cubeFiles;				// determines the naming and flipping conventions for the six images
 
+	byte*				residentPixels = NULL;
+
 	bool				referencedOutsideLevelLoad;
 	bool				levelLoadReferenced;	// for determining if it needs to be purged
 	bool				precompressedFile;		// true when it was loaded from a .d3t file
@@ -423,6 +425,8 @@ public:
 	idStrList			ddsList;
 	idHashIndex			ddsHash;
 
+	bool				keepPixelsResident = false;
+
 	bool				insideLevelLoad;			// don't actually load images now
 
 	byte				originalToCompressed[256];	// maps normal maps to 8 bit textures