Add prototype for RtlPrefixUnicodeString


git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5580 4407c894-4637-0410-b4f5-ada5f102cad1
Add prototype for RtlCreateUnicodeStringFromAsciiz


git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5581 4407c894-4637-0410-b4f5-ada5f102cad1
Reformat RegLoadMUIStringA and RegLoadMUIStringW prototypes.


git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5582 4407c894-4637-0410-b4f5-ada5f102cad1
Add Rtl-Heap API


git-svn-id: https://mingw-w64.svn.sourceforge.net/svnroot/mingw-w64@5583 4407c894-4637-0410-b4f5-ada5f102cad1