feat: npm script hooks

[karlvr]

Feature Request

Description

I'd like to be able to write npm script hooks like precapcopy and postcapcopy to be able to have an opportunity to do things, like correct for a package.json homepage: setting that I might need for the web version of my app. I could just write an npm script to do the cap copy but I'd like to just use the standard cap commands.

[EinfachHans]

What about these?

[jcesarmobile]

there is already an issue about it
#3593

[karlvr]

@EinfachHans I think maybe those are if I'm using ionic but I'm just using cap? I gave them a try but didn't immediately get any joy. @jcesarmobile thank you, I'm following that issue now.

[ionitron-bot]

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