Add pre-commit hooks (#551)

* add more pre-commit hooks

* revert misra coverage table

* fix coverage table exclusion

.pre-commit-config.yaml

@@ -3,9 +3,11 @@ repos:
     rev: master
     hooks:
     -   id: check-ast
-    -   id: check-json
-    -   id: check-xml
     -   id: check-yaml
+    -   id: check-merge-conflict
+    -   id: check-symlinks
+    -   id: trailing-whitespace
+        exclude: '^(board/inc)|[tests/misra/coverage_table]/'
 -   repo: https://github.com/pre-commit/mirrors-mypy
     rev: master
     hooks: