OS support and templates for PR/Issues (#63)

* OS support

* Create ISSUE_TEMPLATE.md

* Create PULL_REQUEST_TEMPLATE.md

.github/ISSUE_TEMPLATE.md

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+<!-- Thanks for filing an issue! Before hitting the button, please answer these questions. 
+It's helpful to search the existing GitHub issues first. It's likely that another user 
+has already reported the issue you're facing, or it's a known issue that we're already aware of-->
+
+**Is this a request for help?**:
+
+---
+
+**Is this a BUG REPORT or FEATURE REQUEST?** (choose one):
+
+<!--
+If this is a BUG REPORT, please:
+  - Fill in as much of the template below as you can.  If you leave out
+    information, we can't help you as well.
+
+If this is a FEATURE REQUEST, please:
+  - Describe *in detail* the feature/behavior/change you'd like to see.
+
+In both cases, be ready for followup questions, and please respond in a timely
+manner.  If we can't reproduce a bug or think a feature already exists, we
+might close your issue.  If we're wrong, PLEASE feel free to reopen it and
+explain why.
+-->
+
+
+**Which installer**:
+
+
+**Which product and version**:
+
+
+**What happened**:
+
+
+**What you expected to happen**:
+
+
+**How to reproduce it** (as minimally and precisely as possible):
+
+
+**Anything else we need to know**: