Get Rid of nobuild, nolink, and alldeps (#2765)

* Removing the nobuild, nolink, and alldeps dependency types in favor of being explicit.
* This will help with maintenance going forward, as adding more dependency types won't affect existing declared dependencies in weird ways.
* default deptype is still `('build', 'link')`

var/spack/repos/builtin/packages/r-nlme/package.py

@@ -34,4 +34,4 @@ class RNlme(RPackage):
 
     version('3.1-128', '3d75ae7380bf123761b95a073eb55008')
 
-    depends_on('r-lattice', type=nolink)
+    depends_on('r-lattice', type=('build', 'run'))