added pull request templates to default branch (#1536)

* added pull request templates to default branch

* hidden markers in case labels are not defaulted to in PR templates

.github/PULL_REQUEST_TEMPLATE/bug-fix.md

@@ -0,0 +1,32 @@
+---
+name: Bug Fix
+about: Create a pull request for a bug fix or forgotten code documentaion
+title: ""
+labels: Bug Fix
+---
+<!-- PR_TYPE: Bug Fix -->
+
+## Description
+
+<!--
+Describe the bug, its cause, and the fix.
+-->
+
+## Release notes
+
+<!--
+Describe the user-visible change introduced by this PR.
+
+If the release note is provided by another PR, link that PR here.
+
+-->
+
+## Checklist
+
+<!--
+Please check the relevant items before requesting review.
+
+- [ ] I have checked whether this is a Breaking API change.
+- [ ] I have provided a release note above or linked the PR containing it.
+- [ ] I have labeled the detectors affected by this PR.
+-->

.github/PULL_REQUEST_TEMPLATE/feature.md

@@ -0,0 +1,32 @@
+---
+name: Feature
+about: Create a pull request for a new feature or change (minor or major) including compilation and dependency related features
+title: ""
+labels: Feature
+---
+<!-- PR_TYPE: Feature -->
+
+## Description
+
+<!--
+Describe what this PR changes and why.
+-->
+
+## Release notes
+
+<!--
+Describe the user-visible change introduced by this PR.
+
+If the release note is provided by another PR, link that PR here.
+
+-->
+
+## Checklist
+
+<!--
+Please check the relevant items before requesting review.
+
+- [ ] I have checked whether this is a Breaking API change.
+- [ ] I have provided a release note above or linked the PR containing it.
+- [ ] I have labeled the detectors affected by this PR.
+-->

.github/PULL_REQUEST_TEMPLATE/infrastructure.md

@@ -0,0 +1,28 @@
+---
+name: Infrastructure
+about: Create a pull request for infrastructure changes in workflow, internal process documentation, helper scripts
+title: ""
+labels: Infrastructure
+---
+<!-- PR_TYPE: Infrastructure -->
+
+## Description
+
+<!--
+Describe the infrastructure change and why it is needed.
+-->
+
+## Equivalent PR
+
+<!--
+Link any euqivalent PRs in a release candidate or developer branch.
+-->
+
+
+## Checklist
+
+<!--
+Please check the relevant items before requesting review.
+
+- [ ] I have linked any equivalent PRs in a release candidate or developer branch.
+-->