* Set up license checker and style checker

* Set up license checker and style checker

* Install go-license checker independently

* add instance command

* add instance command

* fix license

* fix

* fix analyzers took error

* list command

* list command

* list command

* add instance command

* Add command manual and documentations (#8)

* Add command manual and ˆdocumentation

* Rename GitHub Action and display build status and coverage badge

* Update documentation to add developer guide and polishing

* Add command manual and ˆdocumentation

* Rename GitHub Action and display build status and coverage badge

* Update documentation to add developer guide and polishing

[Feature] Support multiple display styles, JSON, YAML, ASCII Table

[Feature] Set GraphQL client and add service ls command

Set up the graphql client, schema and implement a service command
for reference

Modifications:

- Set up GraphQL client
- Implement service ls command

Result:

GraphQL client can be reused by other commands

Add missing license header

Create .asf.yaml

Set up GitHub Action for PR and push

Add license file