Feature/task setup

- Redefines association between class
- Was removed the Class ConnectionWebhook.
- Is importat notice that the assocation between Connection and Webhook is 1..N, a not N..N that was in some moment.
exist field like partial_schema for a weebhook that are particular to specific Connection, other case is the path
field for path exist name convention, but the path name convention is a recommendation is not obligatory, for example could exist the case that the name for a Webhook that Add Product to an empoit the name be diffent to the 'add_product' convention.
- The authorize method for accept a push api request now set the current account matching with the credentials of connection