Evolve raw string identifier to semantic entity

[eparovyshnaya]

Originally we designated raw string identifiers to convey user-product licensing decisions to Passage Runtime Engine.

Production practice of Passage integrations maintenance reveals that raw string identifier approach lacks semantic severely and thus affects one of the most critical integration feat.

Support reports direct correlation between absence of differentiating for raw string identifiers - on one hand, and elongated implementation time with higher expences - on the other.

Hereby it is agreed to take steps to improve codebase in this aspect by eliminating raw strings that serve as identifiers for licensing configuration information and replacing them with entities that are to carry not only string information, but also shoulder semantic weight.

Key focus should rest with integration API: Passage interface, Access Cycle configuration interfaces and all the surronding facilities that developer of a product uses to protect the product with Passage.

The rest of API also should be revised from this perspective, as integration experience proves again and again that practically each extension point of the Passage Runtime Engine gets used every so often.

[ruspl-afed]

Fixed. See #1459 , #1461 and #1463 regarding required test enchantments