Signed-off-by: erick-alcachofa <erick@artichoke.dev>
This commit changes the `OverloadSet` utility class to publicly inherit
from its template parameters `Ts...`. This allows the `operator()` from
each provided type to be brought into the overload set, efectively
fixing it's functionality that would be broken otherwise.
It also includes the missing `<ranges>` header in the test utilities.
Initial version of Tokenizer and Token
Generator template for coroutines (used in tokenizer)
Utilities like string related functions, TrieMap, and error handling
TODO: Add tests for Tokenizer
TODO: Add tests for Generator
