metis 4.0.3

Add version 4.0.3 to metis package. Attempted to implement reasonable
versions of all variants declared for metis@5.1.0; some of these do
not have analogues in metis@4.0.3, and errors are raised accordingly.

Also updated dependencies of packages with depends_on('metis') to
depends_on('metis@5:') to ensure that these packages still build.

var/spack/repos/builtin/packages/superlu-dist/package.py

@@ -15,7 +15,7 @@ class SuperluDist(Package):
     depends_on ('blas')
     depends_on ('lapack')
     depends_on ('parmetis')
-    depends_on ('metis')
+    depends_on ('metis@5:')
 
     def install(self, spec, prefix):
         makefile_inc = []