Update issue templates

Author: jgoerner

.github/ISSUE_TEMPLATE/main-template.md

@@ -0,0 +1,15 @@
+---
+name: Main Template
+about: Please use this template for issue creation
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+#### Description
+
+#### Proposed Solution
+
+#### Tasks
+- [ ]