Add option to hide script description on nps execution

[RichDonnellan]

• nps version: 5.3.1
• node version: 8.1.0
• npm version: 5.0.3

Problem description:
After executing nps, the script description is logged. This can clutter the displayed output if running lengthy scripts.

nps is executing `build`: `nps clean --config ${configFile} && concurrently --kill-others-
on-fail --prefix name --names \'COMPILE,BUILD\' --prefix-colors \'bgBlack.bold,bgCyan.bold\'
\'nps compile --config ${configFile}\' \'nps build --config ${configFile}\'`
nps is executing `compile`: `concurrently --kill-others-on-fail --prefix name --names \'SCSS,JS\'
--prefix-colors \'bgGreen.bold,bgRed.bold\' \'nps compile.scss --config ${configFile}\' \'nps
compile.js --config ${configFile}\'`

Suggested solution:
Add a --no-scripts flag to hide the description from the console.

"scripts": {
    "start": "nps --no-scripts"
}

Expected output:

nps is executing `build`
nps is executing `compile`

(Ref: #119 (comment))

[kentcdodds]

Sounds great. In addition, I'd like this to be configurable in options (like here) 👍

[kentcdodds]

With yargs, the option will be called scripts, will default to true and be a boolean type. This will allow you to use --no-scripts to turn it off.

[erikfox]

@kentcdodds Is this ripe for pickup? Mind assigning to me?

[kentcdodds]

Thanks @erikfox! You're welcome to work on this one. I can't assign it to anyone who doesn't have commit access, but feel free to makeapullrequest.com for it 😄

[erikfox]

@kentcdodds PR #150 is up and needs feedback!