Create a PR template (#751)

Small PR to create a PR template for the Morpheus repo. Once we agree on the template, I'll submit for 
- `MRC`
- `Morpheus-Experimental`
- `Utilities`
- `Morpheus-Visualizations`

Authors:
  - Ben Jarmak (https://github.com/jarmak-nv)

Approvers:
  - Michael Demoret (https://github.com/mdemoret-nv)

URL: #751

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,9 @@
+## Description
+<!-- Provide a standalone description of changes in this PR. -->
+<!-- Reference any issues closed by this PR with "closes #1234". -->
+<!-- Note: The pull request title will be included in the CHANGELOG. -->
+
+## Checklist
+- [ ] I am familiar with the [Contributing Guidelines](https://github.com/nv-morpheus/Morpheus/blob/main/docs/source/developer_guide/contributing.md).
+- [ ] New or existing tests cover these changes.
+- [ ] The documentation is up to date with these changes.

ci/scripts/copyright.py

@@ -45,7 +45,8 @@
     r"^[^ \/\n]*\.cache[^ \/\n]*\/.*$",  # Ignore .cache folder
     r"^[^ \/\n]*build[^ \/\n]*\/.*$",  # Ignore any build*/ folder
     r"^external\/.*$",  # Ignore external
-    r"[^ \/\n]*docs/source/(_lib|_modules|_templates)/.*$"
+    r"[^ \/\n]*docs/source/(_lib|_modules|_templates)/.*$",
+    r"PULL_REQUEST_TEMPLATE.md"  # Ignore the PR template
 ]
 
 # this will break starting at year 10000, which is probably OK :)