[FEATURE REQ] Provide a script/command to refresh a cadl package by using cadl-location.yaml

[dw511214992]

Provide a script/command to refresh a cadl package by using cadl-location.yaml. The following is the steps in your script/command:
Steps:

1. Call ./eng/common/scripts/Cadl-Project-Sync.ps1 to sync the cadl project configured in cadl-location.yaml
2. Call ./eng/common/scripts/Cadl-Project-Generate.ps1 to regenerate SDK. (Recommended by not required, you can still run npm install and cadl compile in your script.)

For more details, please refer to document

[weidongxu-microsoft]

WIP PR https://github.com/Azure/azure-sdk-for-java/pull/33311/files/48b4311486ee2823413596458db26895d9798f16..18aa7962ff0a362137d8c6a45b2945126faa64d5