1. add SceneBinary to 2.x
1.  add classname = "" log.
1.  remove Hungary style.
1.  remove hungary style.
2.  fixes build error.
1.  NULL->nullptr.
2. bRet->ret.
Merge pull request #7261 from boyu0/fix_pvr_bgra8888_crash

fix crash when load pvr bgra8888 image on android.
Merge pull request #7201 from chengstory/cleanupBinaryLoader_AddSceneBinaryParse

Cleanup binary loader add scene binary parse