Adding the Bug Template into master

(cherry picked from commit d60f66c5)

.gitlab/issue_templates/Feature.md

+### Description / Overview
+
+### Use cases
+
+(Who is this for?)
+
+### Links / references
+
+### Feature checklist
+
+(Make sure these are completed before closing the issue, with a link to the
+relevant commit.)
+
+/label ~"Feature proposal"