Pull request templates (#1752)

* pull request templates

* car port checklist

* fix link

* no space

* newline
old-commit-hash: 2ce2260eda

.github/PULL_REQUEST_TEMPLATE/car_bugfix.md

@@ -0,0 +1,19 @@
+---
+name: Car Bug fix
+about: For vehicle/brand specifc bug fixes
+title: ''
+labels: 'car bug fix'
+assignees: ''
+---
+
+**Description**
+
+<!-- A description of the bug and the fix. Also link the issue if it exists. -->
+
+**Verification**
+
+<!-- Explain how you tested this bug fix. -->
+
+**Route**
+
+Route: [a route with the bug fix]