Pass the request as second argument of controller methods

[LoicPoullain]

Issue

In controllers, it is tedious to always have to type the body, query and params with some as Foobar statements.

Solution and steps

• [x] Pass the request as second argument to controller methods.

Checklist

• [x] Add/update/check docs (code comments and docs/ folder).
• [x] Add/update/check tests.
• [x] Update/check the cli generators.