Add template for issues and FRs

Author: dibenede

.github/ISSUE_TEMPLATE/limited-issue-and-fr-support.md

@@ -0,0 +1,10 @@
+---
+name: Limited Issue and FR support
+about: Template for limited support
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Due to our limited support resources, feature requests will generally not be accepted, except for those referring to build or tooling integration.