Update core deps

Author: natefaubion

staging/core/psc-package.json

@@ -1,6 +1,6 @@
 {
     "name": "core",
-    "set": "psc-0.11.7",
+    "set": "psc-0.12.0-20181024",
     "source": "https://github.com/purescript/package-sets.git",
     "depends": [
         "arrays",
@@ -10,28 +10,28 @@
         "contravariant",
         "control",
         "distributive",
-        "eff",
+        "effect",
         "either",
         "enums",
         "exceptions",
         "exists",
         "foldable-traversable",
         "foreign",
+        "foreign-object",
         "free",
         "functions",
         "functors",
-        "generics",
         "generics-rep",
         "globals",
         "graphs",
         "identity",
         "inject",
         "integers",
         "lazy",
-        "maps",
         "math",
         "maybe",
         "monoid",
+        "ordered-collections",
         "prelude",
         "profunctor",
         "proxy",