Colors on the CLI

[litchipi]

While implementing #3294, I had to make choices on what colors to use to display important informations.

I organised styles by their utility in a Style enum with a variant for each type of information, and the method style to generate a styled text, to be used like this: Style:Id.style(some_id)

Here is the variants and their colors that I got now:

You can reproduce this by:

• Check out test_cli_colors branch
• In massa/massa-client, run cargo run
• In the client, write the command wallet_info

Some other examples:

[bilboquet]

As a matter of taste: overall, I like the selected colors

Having 3 different colors for active, final and candidate here is a bit too much for me and it does not improve the readability.
Maybe here, I wish I see some red if, for my staking address, active rolls == final rolls == candidate rolls == 0 (i.e. there is something wrong).

[modship]

It's like a cyberpunk theme