Initialize the github action configurations such as commit/pr constraints, pr/issue template etc

[elliotxx]

What would you like to be added?

Initialize the github action configurations such as commit/pr constraints, pr/issue template etc.

TODO:

• Repository Settings
  • Code Review Settings
    • Allow squash merging
    • Allow auto-merge
    • Automatically delete head branches
• Configurations
  • PR、Issue templates
• CICD
  • CI
    • CommitLint
    • PR Title Lint
    • CLACheck

Why is this needed?

1. Standardize the R&D process
2. Automation
3. Consistency