Revert "Remove non-functional composer support"

This reverts commit 46bc867.

Author: skodak

composer.json

@@ -0,0 +1,17 @@
+{
+  "name": "mutms/moodle-certificateelement_mucertify",
+  "type": "moodle-certificateelement",
+  "description": "Certification fields plugin for Certificate plugin for Moodle LMS",
+  "homepage": "https://github.com/mutms/moodle-certificateelement_mucertify",
+  "license": "GPL-3.0-or-later",
+  "require": {
+    "moodle/composer-installer": "*",
+    "moodle/moodle": "5.1.*||5.2.*",
+    "moodleworkplace/moodle-tool_certificate": "*",
+    "mutms/moodle-tool_mucertify": "*"
+  },
+  "support": {
+    "issues": "https://github.com/mutms/moodle-certificateelement_mucertify/issues",
+    "source": "https://github.com/mutms/moodle-certificateelement_mucertify"
+  }
+}