[PAGOPA-1109] Authorizer - Adding metadata on authorization strings

[andrea-deri]

This PR contains all the update made in order to include the metadata information in the request to be passed to the Authorizer Policy-based's API. The inclusion of the metadata is required in order to save these information in the cached authorization string.
Other update made in this PR are related to a better optimization of the whole system (for example, replacing the comma with the hash character in order to remove a intermediate step of replacing in the Authorizer Policy-based's API).

List of Changes

• Added metadata information on the request for Authorizer Policy-based's API.
• Changed data passed as input for the requests on Authorizer Policy-based's API.

Motivation and Context

These changes are required in order to permit the caching of the metadata in the authorization string.

How Has This Been Tested?

• Tested in DEV environment

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sonarcloud]

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0 Bugs
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100.0% Coverage
0.0% Duplication

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