This adds a new `--diff` option that can be used to only show lines
close to Git changes (added/removed/modified lines). The amount of
additional context can be controlled with `--diff-context=N`.
closes#23
This commit updates the sort order of --help options in order to improve
usability/importance putting most useful/used commands on top. In
addition to that, similar options were grouped together.
This will limit [[bin]] to *bat* only which will make:
- `cargo run` works without specifying --bin
- prevent `cargo build --bins` to produce multiple binaries (app,clap_app,...)