Add support for OGC API Tiles Part 1 - Core Standard

**Is your feature request related to a problem? Please describe.**
deegree OGC API is missing the implementation of OGC API Tiles - Part 1: Core Standard 1.0.0: https://docs.ogc.org/is/20-057/20-057.html

**Describe the solution you'd like**
deegee OGC API shall provide an implementation.

**Describe alternatives you've considered**
none

**Additional context**
none
