Merge branch 'master' of github.com:BehaviorTree/BehaviorTree.CPP

Author: facontidavide

.github/pull_request_template.md

@@ -0,0 +1,11 @@
+<!-- 
+You must run clang-format, otherwise your change may not pass the tests on CI
+We recommend using pre-commit.
+
+To use:
+    pre-commit run -a
+Or:
+     pre-commit install  # (runs every time you commit in git)
+
+See https://github.com/pre-commit/pre-commit
+-->