Features
- Add --single-file flag to skip local module discovery
([20](https://github.com/r-near/nearc/pull/20),
[`1e4e06b`](https://github.com/r-near/nearc/commit/1e4e06b0100f55862f474db0273e253ff483e018))
Add a new CLI option to compile only the specified file without including other modules from the
same directory. This is useful for unit testing and isolated contract development.