Most files suffered major changes

- Less ambiguous syntax
- Better parser (Chumsky only does tokenization now)
- Tidy(|ier) error handling
- Facade for simplified embedding
- External code grouped in (fairly) self-contained Systems
- Dynamic action dispatch
- Many STL additions

src/pipeline/mod.rs

@@ -1,5 +1,4 @@
 //! Loading Orchid modules from source
-pub mod error;
 pub mod file_loader;
 mod import_abs_path;
 mod import_resolution;