Policy {Template} Hub Implementation

[jjeroch]

Description

Implementation of the Policy Hub.
The Policy Hub is supposed to handle central located, all available policies, based on a set of parameters.

With the initial implementation - following endpoints are supposed to get supported

• Get Policy types
• Get Policy json schema based on search values such as "policyType" and "policyCredentials"

Impact

The policy hub is supposed to support data provider

Additional information

• I'm willing to contribute to this feature

Tickets

• feat(hub): add implementation for policy hub policy-hub#2
• feat(hub): add implementation for policy hub policy-hub#5
• chore(documentation): add request documentation policy-hub#7
• fix(seeding): add purpose trace 3.1 id policy-hub#15

[jjeroch]

The new component will get implemented as standalone product/component (separated from the portal product and IAM). A policy upload function is not planned - data upload is supposed to happen via seeding data files