Use id_arena and InternedString in the compiler

[tomoyanonymous]

In the current implementation, compiler clones many String value and comparing them.
Use StringInterner crate will improve the performance.

https://docs.rs/string-interner/latest/string_interner/

Also, recursive type definitions in the Expr and Type are realized simply with Box<Self>, however, this this will make a implementation
of interactive inspection of values difficult, for example, for the language server. Using id_arena simplifies this situation, along with performance improvements.

They are tested on my another project otopoiesis (an experimental branch)

https://github.com/tomoyanonymous/otopoiesis/blob/372bfb7b5c760744f69532c63e8804878a84397d/otopoiesis_lang/src/expr.rs#L31-L32

https://github.com/tomoyanonymous/otopoiesis/blob/372bfb7b5c760744f69532c63e8804878a84397d/otopoiesis_lang/src/lib.rs#L25-L28