Add template for issues and pull-request's

Author: tommy-muehle

.github/ISSUE_TEMPLATE.md

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+**Note: If you are having problems formatting your issue please refer to this article on using markdown in Github:**
+
+https://guides.github.com/features/mastering-markdown/
+
+**Note: for support questions, please use this channel:** 
+
+https://gitter.im/tommy-muehle/tooly-composer-script
+
+### Expected behavior
+
+### Actual behavior
+
+### Steps to reproduce actual behavior
+
+### Other information (e.g. version, os system, stacktraces, etc) 

.github/PULL_REQUEST_TEMPLATE.md

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+#### Short description of what this resolves:
+
+
+#### Changes proposed in this pull request:
+
+-
+-
+-
+
+**Version**: 1.x
+
+**Fixes**: #