Tekisasu Toolchain 0.5 progress notes p1

Tekisasu Toolchain 0.5 has rebased Tekisasu Engine on the latest upstream Godot 3.3.1 Github branch and after review has adapted all Apr 30th – May 5th commits (31bc9d8 – 476bc51): https://github.com/godotengine/godot/commits/3.3 Test builds successful. A portion of the Tekisasu Toolchain patchset was reverted in the rebase (editor/editor_node.cpp) and has been reverted.