Added CLI tool feature

[steel-bucket]

Added the CLI Tool feature

For installation run

$ cargo install --path . --locked

For usage

$ command_timeout -c "curl https://www.google.com/" -f  "/path/to/config.toml"

OR

$ command_timeout 
$ Enter your Command - curl https://www.google.com/
$ Enter your config location - /path/to/config.toml

Example of config.toml

minimum_timeout_ms = 500
maximum_timeout_ms = 10000
activity_timeout_ms = 2000

[steel-bucket]

@cfsmp3 Please review this PR if possible. It's complete, I used a config file here, I could replace it with the 3 parameters being asked for directly.

[cfsmp3]

@cfsmp3 Please review this PR if possible. It's complete, I used a config file here, I could replace it with the 3 parameters being asked for directly.

I don't want to replace tracing with println. Why would we do that?

[steel-bucket]

@cfsmp3 Okay, I have replaced println or eprintln with tracing::info. I used println before as tracing added the dates which looked bad. The one used now has the dates and INFO tag removed. I did use print once, as info adds a linebreak everytime.
We could also use crates like colored or yansi for Coloured and Bold Text in the CLI tool.