Add project files.

tests/editor_headless/stubs/rlgl.h

@@ -0,0 +1,12 @@
+#pragma once
+#include "raylib.h"
+#define RL_LINES 0x0001
+void rlBegin(int mode); void rlEnd(void);
+void rlColor4ub(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
+void rlVertex3f(float x, float y, float z);
+void rlEnableDepthTest(void); void rlDisableDepthTest(void);
+void rlEnableBackfaceCulling(void); void rlDisableBackfaceCulling(void);
+void rlDrawRenderBatchActive(void);
+void rlSetClipPlanes(double nearPlane, double farPlane);
+unsigned int rlGetShaderIdDefault(void);
+int *rlGetShaderLocsDefault(void);