Gcp full reindex (GONRG-1534)

Description:

As a part of the migration to a new Elastic 7 we need some functionality
that will allow us to do full reindex of Records registered in Storage service.
Added new endpoint: PATCH /api/indexer/v2/reindex?force_clean=false

• Get all kind from Storage
• Clean all old indexes in Elastic
• Iterate over kinds and do reindex

How to test:

Functionality was tested locally, with local elastic(v6 & v7)

Changes include:

• Refactor (a non-breaking change that improves code maintainability).
• Bugfix (a non-breaking change that solves an issue).
• New feature (a non-breaking change that adds functionality).
• Breaking change (a change that is not backward-compatible and/or changes current functionality).

Changes in:

• GCP
• Azure
• AWS
• IBM

Dev Checklist:

• Existing Tests pass
• Verified functionality locally
• Self Reviewed my code for formatting and complex business logic.

Other comments:

Functionality was implemented with reusing existing logic for reindex of a single kind, to reduce common code changes, thus due to architectural features, request cannot be executed asynchronously, and response may be detained.