[c:kaa:rcm] fem: extend laplace 3d with qr-ordering
[c:kaa:rcm] core: add drawing graph
[c:kaa:rcm] tools: add metis reordering app
[c:kaa:rcm] rcm: add triple nd reordering for QR factorization
[c:kaa:rcm] tools: add tnd reordering app