Add Issue and Pull Request Templates

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,23 @@
+---
+name: Bug Report
+about: Create a report to help us improve CSI Driver
+
+---
+
+<!-- Please use this template while reporting a bug and provide as much info as possible. Not doing so may result in your bug not being addressed in a timely manner. Thanks!
+-->
+
+
+**What happened**:
+
+**What you expected to happen**:
+
+**How to reproduce it**:
+
+**Anything else we need to know?**:
+
+**Environment**:
+- Azure Disk CSI Driver version
+- Kubernetes version (use `kubectl version`):
+- Others:
+

.github/ISSUE_TEMPLATE/enhancement.md

@@ -0,0 +1,18 @@
+---
+name: Enhancement Request
+about: Suggest an idea for this project
+
+---
+
+
+**Is your feature request related to a problem?/Why is this needed**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like in detail**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/feature-request.md

@@ -0,0 +1,17 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like in detail**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/support.md

@@ -0,0 +1,15 @@
+---
+name: Support Request
+about: Ask questions about the driver
+
+---
+
+<!-- 
+STOP -- PLEASE READ!
+
+GitHub is not the right place for support requests.
+
+If you're looking for help, post your question on the [Kubernetes Slack ](http://slack.k8s.io/) Sig-AZURE Channel.
+
+If the matter is security related, please disclose it privately via https://kubernetes.io/security/.
+-->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,15 @@
+<!-- If this is your first time, please read our contributor guidelines: https://github.com/csi-driver/azuredisk-csi-driver/blob/master/CONTRIBUTING.md and developer guide https://github.com/csi-driver/azuredisk-csi-driver/blob/master/docs/csi-dev.md
+-->
+
+**What this PR does / why we need it**:
+
+**Which issue(s) this PR fixes**:
+<!-- 
+*Automatically closes linked issue when PR is merged.
+Usage: `Fixes #<issue number>`, or `Fixes (paste link of issue)`.
+_If PR is about `failing-tests or flakes`, please post the related issues/tests in a comment and do not use `Fixes`_*
+-->
+Fixes #
+
+**Special notes for your reviewer**:
+