V1 API Osuny : Posts, Events, Organizations (#2488)

* fix websites

* websites api

* handle json responses on errors

* websites index api ok

* websites show

* adjustments websites

* wip posts: index & show

* wip post creation

* post creation via API

* updates post

* allow multiple examples for same response code based on description

* post deletion

* no_content for deletion

* wip

* fix locale

* add vcr

* upload image

* change "options" to "default" for numbers

* add options to layout component

* add templates api

* handle category param in templates index

* wip blocks

* wip schemas

* websites with schema

* wip posts

* website localization in object

* posts index

* show post

* post creation (ugly controller)

* post crud

* wip blocks

* add schemas for all block templates

* fix

* oneOf block templates

* add format uuid when needed

* fix file component schema

* spec

* add todo

* with_open_api trait

* remove blocks/templates controller

* wip

* wip crud with blocks

* wip upsert

* wip upsert

* note upsert as wip

* upsert

* remove [WIP]

* openapi

* wip refactor

* wip events

* event (+ l10n) openapi schemas

* api events: index, show, :create

* api events: update, destroy

* api events: upsert + fix from_hour and to_hour

* fix

* organization migration identifier

* remove slug from organizations

* organization openapi schemas

* api organizations

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Co-authored-by: Arnaud Levy <contact@arnaudlevy.com>
Co-authored-by: Arnaud Levy <arnaud.levy@noesya.coop>