add support to easily remove profiles and shell levels.  the libraries will not do anything (but no longer fail), if the PCDs are changed to remove their functionality.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11666 6f19259b-4bc3-4df7-8a09-765794883524
8 files changed