introduce a "get Wellbores by a WellID" feature

implement find method on a /find/wellbores_by_well_id

acceptance:

• a frontend application could use the method to load well's wellbores.

steps:

• implement a handler to the route
• apply an authorization middleware
• implement incoming parameters parsing and verification
• apply call-search-api helper to perform a proper search
• handle an api response
• form a route response to match a given schema