Setup: template - Add template for PR, bug report and enhancement request (#5)

Add template for PR, bug report and enhancement request

.github/ISSUE_TEMPLATE/bug-report.md

+---
+name: Create an issue
+about: Report an issue or question while using SuperBenchmark.
+
+---
+
+**What's the issue, what's expected?**:
+
+
+**How to reproduce it?**:
+
+
+**Log message or shapshot?**:
+
+
+**Additional information**:
+

.github/ISSUE_TEMPLATE/enhancement.md

+---
+name: Enhancement Request
+about: Suggest an enhancement to the SuperBenchmark project
+
+---
+<!-- Please only use this template for submitting enhancement requests -->
+
+
+**What would you like to be added**:
+
+
+**Why is this needed**:
+
+
+**Without this feature, how does current superbenchmark work**：
+
+
+**Components that may involve changes**:
+
+
+**Brief description of your proposal if any**:
+

.github/pull_request_template.md

+**Description**
+Please write a brief description and link the related issue if have.
+
+**Major Revision**
+- Major Revision A
+- Major Revision B
+- ...
+
+**Minor Revision**
+- Minor Revision A
+- Minor Revision B
+- ...