[Enhancement] Check environment with `envinfo` and / or `solidarity`

[shouse]

As you are supporting multiple types of environments, it would be very useful to to be able to check it with a brew doctor type of approach. I found https://github.com/tabrindle/envinfo, https://github.com/infinitered/solidarity, the combination: https://github.com/GantMan/solidarity-envinfo, and a react-native solidarity: https://github.com/infinitered/solidarity-react-native that could really help with this.

[pavjacko]

@shouse those tools look pretty promising! 👍. as ReNative grows in coverage, full system checks will definitely become essential. ping @CHaNGeTe @mihaiblaga89 worth to check them out for upcoming system/OS related PRs

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