reset cached uniforms when a shader is reloaded
reset cached uniforms when a shader is reloaded

galek/LumixEngine,zhouxh1023/LumixEngine,JakubLukas/LumixEngine,zhouxh1023/LumixEngine,JakubLukas/LumixEngine,galek/LumixEngine,gamedevforks/LumixEngine,dreamsxin/LuxEngine,dreamsxin/LuxEngine,gamedevforks/LumixEngine,JakubLukas/LumixEngine