Fix floating point precision loss in renderer [part 2]

Fix floatTime using float precision instead of double using GCC.
Fix R_BindAnimatedImage to be in sync with function table.
Fix vertexDeform bulge, vertexDeform normals, noise wave function
at high level time.

Revert unnecessary float -> double conversions.

code/renderergl2/tr_scene.c

@@ -400,7 +400,7 @@ void RE_BeginScene(const refdef_t *fd)
 
 	// derived info
 
-	tr.refdef.floatTime = tr.refdef.time * 0.001f;
+	tr.refdef.floatTime = tr.refdef.time * 0.001;
 
 	tr.refdef.numDrawSurfs = r_firstSceneDrawSurf;
 	tr.refdef.drawSurfs = backEndData->drawSurfs;