Implement libruntimeobject.a with a linker script

Rename current runtimeobject to api-ms-win-core-winrt-string-l1-1-0
We will INPUT() for other libs when they are added

git-svn-id: svn+ssh://svn.code.sf.net/p/mingw-w64/code/trunk@5884 4407c894-4637-0410-b4f5-ada5f102cad1
6 files changed