cc-api-tester: init component

[hsablonniere]

We need what we have in the admin for debug purposes.

First v0 could just be:

• toggle method
• text url
• text body
• button send
• text output

Check if it exists already... See the OpenAPI thing from @miton18

[miton18]

Perhaps, there is something to take from https://inspector.swagger.io/builder