(goctl)feature/model config

[kesonan]

1. Support model data type reading from configuration files when GOCTL_EXPERIMENTAL is turned on.
2. Support custom data type mapping when GOCTL_EXPERIMENTAL is turned on
3. More info pls refer to
   https://go-zero.dev/docs/tutorials/cli/config(中文)
   https://go-zero.dev/en/docs/tutorials/cli/config(English)
   https://go-zero.dev/docs/tutorials/cli/model#%E7%B1%BB%E5%9E%8B%E6%98%A0%E5%B0%84%E8%87%AA%E5%AE%9A%E4%B9%89(中文)
   https://go-zero.dev/en/docs/tutorials/cli/model#type-mapping-customization(English)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.16%. Comparing base (8690859) to head (15c2138).
Report is 9 commits behind head on master.

Additional details and impacted files

see 255 files with indirect coverage changes