Describe your changes

The Scene3DTest.cpp/.h were never updated during the transition from Cocos2d-x v3 to v4, and it has remained that way during the porting to Axmol, since it was never part of the build (disabled in CMakeLists.txt) to be noticed. It's now updated, and works, but may have some bugs.

I'm not quite sure what this line is for, or what to change it to in Axmol, so I would appreciate some guidance:

RenderState::StateBlock::invalidate(ax::RenderState::StateBlock::RS_ALL_ONES);

Issue ticket number and link

Checklist before requesting a review

For each PR

• Add Copyright if it missed:
  - "Copyright (c) 2019-present Axmol Engine contributors (see AUTHORS.md)."

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  • I have checked readme and add important infos to this PR.
  • I have added/adapted some tests too.

For core/new feature PR

• I have checked readme and add important infos to this PR.
• I have added thorough tests.