Add FRLG fishing shiny hunt program

[Developer-Butters]

Adds a fishing-based shiny hunt program for FRLG.

Includes adaptive bite timing, automatic rod registration, correct encounter
counting, and integration with the existing shiny detection pipeline.

Follows structure used by other FRLG programs and improves loop speed compared
to static timing approaches.

[Mysticial]

Thanks for this! However, this does looks vibe-coded. Vibe-coding is fine, but you need to understand and review what the AI has generated so that you know it as well as if you wrote it yourself.

• You shouldn't edit CMakeLists.txt. You AI did this probably because that's where file lists usually go. But we moved our file list to a separate file: SourceFiles.cmake.
• The formatting for your 2 new files is completely off from our coding standard. Please fix this.

[jw098]

It looks like your PR still has made lots of changes to CMakeLists.txt. See the Files Changed tab on Github for all the changes you made. You'll want to revert that change. Also, somehow your AI added a weird line ending to the entire SourceFiles.cmake. You'll want to revert that change as well and add only the 1-2 lines needed to make your program compile.