feat: add Default GitLab Issue/PR templates

.gitlab/issue_templates/Default.md

+## Expected Behavior
+
+
+## Actual Behavior
+
+
+## Steps to Reproduce the Problem
+
+  1.
+  1.
+  1.
+
+## Specifications
+
+  - Version/Commit:
+  - Platform:

.gitlab/merge_request_templates/Default.md

+Fixes #
+
+## Proposed Changes
+
+  -
+  -
+  -