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-catools/package.py

@@ -38,4 +38,4 @@ class RCatools(RPackage):
 
     version('1.17.1', '5c872bbc78b177b306f36709deb44498')
 
-    depends_on('r-bitops', type=nolink)
+    depends_on('r-bitops', type=('build','run'))