Issue #2332157 by tstoeckler: Add a composer.json.

CHANGELOG.txt

 
 Libraries 8.x-3.x, xxxx-xx-xx
 -----------------------------
-#2287529 by drupalshrek, tstoeckler: Update installation link in README.txt
+#2332157 by tstoeckler: Add a composer.json.
+#2287529 by drupalshrek, tstoeckler: Update installation link in README.txt.
 by tstoeckler: Fix tests.
 #2309203 by JayeshSolanki: Replace removed functions with module handler service.
 #2290767 by yukare: Replace removed cache() function.

composer.json

+{
+  "name": "drupal/libraries",
+  "description": "Allows version-dependent and shared usage of external libraries in Drupal.",
+  "type": "drupal-module",
+  "homepage": "http://drupal.org/project/libraries",
+  "authors": [
+  ],
+  "support": {
+    "issues": "http://drupal.org/project/issues/libraries",
+    "irc": "irc://irc.freenode.org/drupal-contribute",
+    "source": "http://cgit.drupalcode.org/libraries"
+  },
+  "license": "GPL-2.0+"
+}