Create a FindYardl.cmake script

[naegelejd]

Objective: Find and test the version of Yardl from within a CMake build environment.

Solution: Implement a CMake “Find” script for Yardl, similar to something like FindBISON.cmake:

https://cmake.org/cmake/help/latest/module/FindBISON.html
https://github.com/Kitware/CMake/blob/master/Modules/FindBISON.cmake

Essentially, it would just:

1. Search for the yardl binary
2. Run yardl —version and collect output
3. Pass the path and version to CMake’s find_package_handle_standard_args​, which ensures the version matches the one requested in CMakeLists.txt.