* score/Makefile.am, score/include/rtems/score/thread.h,
score/inline/rtems/score/thread.inl: No longer inline _Thread_Get. It
resulted in unnessary code explosion, many uncovered paths when
looking at binary executable coverage, and only optimized getting
self. Id translations were still getting pushed to a subroutine call
to _Objects_Get. Later the non-inlined version can be further
optimized to get Ids in range for the current API, then self, then
look at other APIs.
* score/src/threadget.c: New file.