Following from #53 #1
Description
Following from #53
The main problem is that when the process is spawned from Nodejs, the colors are not shown because the terminal is not a tty. This is one of the first checks done by supports-color. So we can pass always --colors to enable color by default wihout environment and test our own checks for color disabling. The rest of the checks done by supports-color should be OK.
Also, I've removed execa development dependency as it is only used here, ofuscating things I think.
Originally posted by @mondeja in simple-icons/svglint#55