github templates: Add pull request template and update issue template. (#365)

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,8 @@
+---
+<!-- Please Include: -->
+- **Operating System**:
+  - [ ] Windows
+  - [ ] Linux/Ubutnu
+  - [ ] macOS
+- **Clear steps to reproduce the issue**:
+- **Relevant error messages and/or screenshots**:

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,16 @@
+---
+<!--
+Remove the fields that are not appropriate
+Please include:
+-->
+
+**What's this PR do?**
+
+**Any background context you want to provide?**
+
+**Screenshots?**
+
+**You have tested this PR on:**
+  - [ ] Windows
+  - [ ] Linux/Ubuntu
+  - [ ] macOS

ISSUE_TEMPLATE.md

@@ -1,7 +0,0 @@
----
-Please include: 
-- `Operating System`
-- `Clear steps to reproduce the issue`
-- `Relevant error messages and/or screenshots`
-
-