[gn build] Add build files for clang/tools/{clang-refactor,clang-rename},...

[gn build] Add build files for clang/tools/{clang-refactor,clang-rename}, clang/utils/hmaptool, clang/lib/Tooling/Refactoring

Needed for check-clang.

Differential Revision: https://reviews.llvm.org/D56055

llvm-svn: 350025