* Headers/AppKit/NSCollectionView.h
	* Headers/AppKit/NSCollectionViewItem.h
	* Source/GNUmakefile
	* Source/NSCollectionViewItem.m
	* Source/NSCollectionView.m: Added NSCollectionView and
	NSCollectionViewItem classes from testplant branch.  Made changes
	to original patch to conform to coding standards, NSCoding for
	non-keyed archiving and moved instances of float/integer to
	CGFloat and NSInteger/NSUInteger as appropriate.
	Patch by Doug Simons (dsimons@testplant.com) and
	Frank LeGrand (flegrand@testplant.com).



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@36545 72102866-910b-0410-8b05-ffd578937521