#2323 Add method to `NodesOnlyMesh` to check whether any of the nodes are close to the boundary of the domain defined in `BoxCollection`. Close is assumed to default to the cut-off length unless otherwise set.

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@18188 b5f69653-2bf5-0310-8201-b0dafb8e1405
#2250 Fix for Metis 5.0 API

git-svn-id: https://chaste.cs.ox.ac.uk/svn/chaste/trunk@18189 b5f69653-2bf5-0310-8201-b0dafb8e1405