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-ttr/package.py

@@ -34,5 +34,5 @@ class RTtr(RPackage):
 
     version('0.23-1', '35f693ac0d97e8ec742ebea2da222986')
 
-    depends_on('r-xts', type=nolink)
-    depends_on('r-zoo', type=nolink)
+    depends_on('r-xts', type=('build', 'run'))
+    depends_on('r-zoo', type=('build', 'run'))