Added GitHub templates for issues and pull requests

ISSUE_TEMPLATE.md

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+**Current Behavior:**
+<!-- Describe how the issue/bug manifests. -->
+
+**Expected Behavior:**
+<!-- Describe what the behavior would be without the issue. -->
+
+**Steps to Reproduce:**
+<!-- If you are able to illustrate the bug or feature request with an example, please provide steps to reproduce and if possible a demo using one of the following templates. -->
+
+  1.
+  1.
+  1.
+
+**Other Information:**
+<!-- List any other information that is relevant to your issue. Stack traces, related issues, suggestions on how to fix, etc. -->
+
+**System Information:**
+<!-- List any system or platform related information, e.g. version, operating system, etc. -->

PULL_REQUEST_TEMPLATE.md

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+#### Short Description
+<!-- Add a short description of what this pull request resolves -->
+
+#### Proposed Changes
+<!-- List all changes proposed in this pull request -->
+
+  *
+  *
+  *
+
+**Fixes**: #