Complete steps needed to get out of experimental

[mhdawson]

nodejs/node#14532

[aruneshchandra]

The group agreed on the following criteria to exit experimental status:

Criteria	Status
Multiple implementations of n-api on at least 2 VMs	Done
Define N-API / async_hooks dependency	Done #14697
At least two modules used in real world use cases on at least one VM	In progress. bcrypt, weak-napi and iotivity-node (used in academic project "Campie")
At least two modules that are NPM installable with pre-builds and all unit tests passing	We should continue to enable this, but it does not have any impact on the stability of N-API. Next step is to discuss with TSC to remove this as a blocking criterion

[aruneshchandra]

Pre-gyp conversations is on issue #263

[aruneshchandra]

node-zopfli is now being used in production with Edge Dev portal on Node-ChakraCore

[mhdawson]

Issue with request to move out of experimental: nodejs/TSC#501

[mhdawson]

Closing, out of experimental in master.