- align buildIdris function with direction of nixpkgs version.
- tangentially, update naming of local variables to follow nixpkgs.
- use pname/version instead of name for buildIdris derivations.
* Refactor buildIdris slightly and support installing libraries with source. Add the Idris2 API package as an output of the flake.
* update templates and simplify construction of a search path.
* use newer method of specifying default package
* swap out trace function for warn function. fix warnings in template generation
