Add two version of Convenience Context

Author: anatoly-scherbakov

$convenience.jsonld

@@ -0,0 +1,34 @@
+{
+  "@context": {
+    "$always": "@always",
+    "$base": "@base",
+    "$container": "@container",
+    "$direction": "@direction",
+    "$embed": "@embed",
+    "$explicit": "@explicit",
+    "$graph": "@graph",
+    "$id": "@id",
+    "$import": "@import",
+    "$included": "@included",
+    "$index": "@index",
+    "$json": "@json",
+    "$language": "@language",
+    "$list": "@list",
+    "$nest": "@nest",
+    "$never": "@never",
+    "$none": "@none",
+    "$null": "@null",
+    "$omitDefault": "@omitDefault",
+    "$once": "@once",
+    "$prefix": "@prefix",
+    "$propagate": "@propagate",
+    "$protected": "@protected",
+    "$requireAll": "@requireAll",
+    "$reverse": "@reverse",
+    "$set": "@set",
+    "$type": "@type",
+    "$value": "@value",
+    "$version": "@version",
+    "$vocab": "@vocab"
+  }
+}

convenience.jsonld

@@ -0,0 +1,34 @@
+{
+  "@context": {
+    "always": "@always",
+    "base": "@base",
+    "container": "@container",
+    "direction": "@direction",
+    "embed": "@embed",
+    "explicit": "@explicit",
+    "graph": "@graph",
+    "id": "@id",
+    "import": "@import",
+    "included": "@included",
+    "index": "@index",
+    "json": "@json",
+    "language": "@language",
+    "list": "@list",
+    "nest": "@nest",
+    "never": "@never",
+    "none": "@none",
+    "null": "@null",
+    "omitDefault": "@omitDefault",
+    "once": "@once",
+    "prefix": "@prefix",
+    "propagate": "@propagate",
+    "protected": "@protected",
+    "requireAll": "@requireAll",
+    "reverse": "@reverse",
+    "set": "@set",
+    "type": "@type",
+    "value": "@value",
+    "version": "@version",
+    "vocab": "@vocab"
+  }
+}