GLProgram memory do not release.

[fusijie]

version: v3.5
issue: Create a GLProgram object and release it, the memory of it do not release.
reproduce: GLProgram is an autorelease object. Notice the memory.

for (int i=0; i<500; i++) {
            auto glProgram = cocos2d::GLProgram::createWithByteArrays(cocos2d::ccPositionTextureColor_noMVP_vert, cocos2d::ccPositionTextureColor_frag);
        }

[dabingnn]

Memory leak does not exists. Tested on IOS by using profile tools.
However, the program would crash if there are two many glprograms create in a short while because the release of the memory is delayed.

Please close it.

[dabingnn]

@fusijie @pandamicro @AndyQue