Add workout (read / write) cholesterol (read) authorization check for each health kit type

[AFGhazy]

Add workout (read / write) cholesterol (read) authorization check for each health kit type.

[JulianKingman]

@terrillo this looks super useful, could you merge this?

[JulianKingman]

@AFGhazy I get an error when using getAuthStatus
usage:

AppleHealthKit.getAuthStatus((err, res) => console.log(err, res));

error:

AppleHealthKit.getAuthStatus was called with 1 argument but expects 2 arguments. If you haven't changed this method yourself, this usually means that your versions of the native code and JavaScript code are out of sync. Updating both should make this error go away.

[JulianKingman]

I see, it requires a permission object. Is that the same as the Permissions in the AppleHealthKit.Constants?
Edit: I get how it works now, just like initHealthKit.

[matthewyuhk01]

I think this is very useful. Can it be merged?

[mazenchami]

@AFGhazy any update on the documentation (and fixing the README.md conflict) and merging with master?
@terrillo thoughts?

[AFGhazy]

@mazenchami I have resolved the conflicts and @terrillo has access to edit the pull request, have a great day.

[gamsim]

Getting an error which I can't resolve...any help would be appreciated...

function collectWorkout(date) {
return new Promise((resolve) => {
const startDate = moment(date).format(isoFormat);
AppleHealthKit.getWorkout({ startDate }, (error, result) => {
console.log(result);
resolve();
});
});
}