Move Github templates to a folder

.github/pull_request_template.md

@@ -0,0 +1,8 @@
+Before to submit your pull-request:
+
+- Be sure that the unit tests pass
+- If you create a new feature, test your code, do not introduce new bugs
+- Avoid code duplication
+- Small pull-requests are easier to review and can be merged quickly
+- 1 pull-request == 1 feature/improvement
+- Non necessary features should be implemented as plugin