change project.uvprojx C/C++ path
Before the project was established with RB_ROOT
create project.uvprojx by scons and use mdk5
Merge branch 'rt-threadCoing' of https://github.com/Coing/rt-thread into rt-threadCoing

Conflicts:
	bsp/lpc5410x/project.uvprojx
create project.uvprojx by scons mdk5 and delete some useless files