**0.8.11**
- Use `toml/serde` crates to parse irust config file instead of manual parsing, theme and config files are now changed to toml.
- Add the ability to invoke irust with a path to a file, that will be loaded into the repl automatically, exp: `irust src/lib.rs`
- Add a check for required dependencies
- Add a one time warning for optional dependencies, and the ability to install them automatically
- Add `:color` command -> change highlight color at runtime, exp: `:color function red`, `:color keyword #ffab12`
