Add metadata file

meta/libraries.json

@@ -0,0 +1,18 @@
+{
+    "key": "core",
+    "name": "Core",
+    "authors": [
+        "Peter Dimov",
+        "Glen Fernandes",
+        "Andrey Semashev"
+    ],
+    "maintainers": [
+        "Peter Dimov <pdimov -at- pdimov.com>",
+        "Glen Fernandes <glenfe -at- live.com>",
+        "Andrey Semashev <andrey.semashev -at- gmail.com>"
+    ],
+    "description": "A collection of core utilities.",
+    "category": [
+        "Miscellaneous"
+    ]
+}