Add no-color, fix #15

[iggyvolz]

Allows --no-color to be passed, which will prevent any color from being written to the terminal.

[lpinca]

I think this commit a2ae4f5 was to remove colors when stdout is not a tty.

cc: @nwwells

[lpinca]

oh nvm this is to always remove colors.

[lpinca]

Can we simplify this? Like

if (color === undefined) color = Console.Colors.Default;
if (!program.color) color = '';

[iggyvolz]

Done.

[lpinca]

SGTM.

[lpinca]

Thank you.

[lotkao]

This doesn't work - it just removes all coloring permanently.

Line 70 if (!program.color) color = '';
There is no program.color, so color is always cleared.

Line 137 .option('--no-color', 'Run without color')
This is the only time "no-color" is used, so the option is pointless as is.

I suggest the following:

Line 70 change to: if (program.nocolor) color = '';

Line 137 change to: .option('--nocolor', 'Run without color')
because having the dash in there brakes it.

This will have the desired effect of having no colors when calling wscat with --nocolor.

[lotkao]

I tested the master again, and --no-color is working. Please disregard my previous post. I was not aware that using --no-color would become color.