Measure text.

include/core.h

@@ -16,6 +16,7 @@ int lcoreClearWindowState( lua_State *L );
 int lcoreIsWindowResized( lua_State *L );
 int lcoreSetWindowIcon( lua_State *L );
 int lcoreSetWindowTitle( lua_State *L );
+int lcoreCloseWindow( lua_State *L );
 /* Timing. */
 int lcoreSetTargetFPS( lua_State *L );
 int lcoreGetFrameTime( lua_State *L );

include/text.h

@@ -4,8 +4,11 @@
 bool validFont( size_t id );
 /* Loading. */
 int ltextLoadFont( lua_State *L );
+int ltextLoadFontFromImage( lua_State *L );
 int ltextUnloadFont( lua_State *L );
 /* Drawing. */
 int ltextDrawFPS( lua_State *L );
 int ltextDrawText( lua_State *L );
 int ltextDrawTextPro( lua_State *L );
+/* Misc. */
+int ltextMeasureText( lua_State *L );