Fix texture recreation when GL context is lost

[smilediver]

Describe your changes

This PR contains 3 changes:

• When GL context is lost on Android all textures in the context are destroyed implicitly. But TextureInfoGL::onRendererRecreated() calls glDeleteTextures() on old texture IDs and if other new textures have already allocated these IDs, then it ends up deleting those new textures corrupting their state. and the OpenGLState was reset before event EVENT_RENDERER_RECREATED fired in core/platform/android/javaactivity-android.cpp

• TextureCubeGL seems to listen to EVENT_COME_TO_FOREGROUND when it should listen to EVENT_RENDERER_RECREATED, so fixed that.

• Did some renaming to reflect that things are being used for renderer recreated event.

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