Extend capabilities of http4s DSL to cover complex use cases of uri template

[oleksandr-balyshyn]

The issue that I came across is that the current http4s DSL does not support defining complex use cases such as the following:

• multiple path variables in the same path segment, e.g, http://example.com/people/{firstName}-{lastName}/SSN
• extractor and literal within the same path segment, e.g http://example.com/people/{firstName}-some-literal/SSN or http://example.com/people/some-literal-{firstName}/SSN

See more:

• Improve Routes DSL to support complex URI template patterns zio/zio-http#2679
• Enchancement of the Endpoint DSL to support multiple path variables or combination of path variable and literal within single path segment softwaremill/tapir#3747