Function PathMatcher

include/IECore/PathMatcher.h:73–73

We use lazy-copy-on-write so that copies are cheap until edited. This means we can use default copy and assignment

		/// We use lazy-copy-on-write so that copies are cheap until edited.
		/// This means we can use default copy and assignment
		PathMatcher( const PathMatcher &other ) = default;
		PathMatcher& operator= ( const PathMatcher &other ) = default;
		~PathMatcher() = default;