feat!: add dfsp inbound api

[kirgene]

• add dfsp inbound api

• refactor sdk types:

  old structure:

  sdk-scheme-adapter/
  ├─ outbound/
  │  ├─ v2_0_0/
  │  │  ├─ components/
  │  │  ├─ path/
  │  │  ├─ openapi.yaml
  

  new structure:

  sdk-scheme-adapter/
  ├─ v2_0_0/
  │  ├─ components/
  │  ├─ outbound/
  │  │  ├─ path/
  │  │  ├─ openapi.yaml
  │  ├─ inbound/
  │  │  ├─ path/
  │  │  ├─ openapi.yaml
  

[mdebarros]

+1

The new structure makes sense. I wish we did this earlier since it will impact our current implementations :(