Update showfstype build rules

* No need fat binary. Building for 32 bit architectures.
* Add a debug target: showfstype is compiled in debug mode into the
  current directory
* Fix the install-local target

git-svn-id: svn+ssh://svn.code.sf.net/p/cloverefiboot/code@3096 52d7a1c0-eba5-4e63-a9d7-e3186cd7c462
Add new util: partutil

git-svn-id: svn+ssh://svn.code.sf.net/p/cloverefiboot/code@3097 52d7a1c0-eba5-4e63-a9d7-e3186cd7c462
Fix an issue in partutil

git-svn-id: svn+ssh://svn.code.sf.net/p/cloverefiboot/code@3098 52d7a1c0-eba5-4e63-a9d7-e3186cd7c462
Installer now use partutil instead of diskutil/showfstype

git-svn-id: svn+ssh://svn.code.sf.net/p/cloverefiboot/code@3099 52d7a1c0-eba5-4e63-a9d7-e3186cd7c462