fix(ios): fix error on sequential rejections

[CoryWritesCode]

Fixes #67

[douglasjunior]

Thank you for the PR!

I have a question, following the example in #67 both the promises are resolved or rejected?

What you see in console if you do:

GetLocation.getCurrentPosition({
      ....
    })
      .then(newLocation => {
        console.log('resolved 1', newLocation);
      })
      .catch(ex => {
        console.log('rejected 1', ex);
      });
      
GetLocation.getCurrentPosition({
      ....
    })
      .then(newLocation => {
        console.log('resolved 2', newLocation);
      })
      .catch(ex => {
        console.log('rejected 2', ex);
      });

The expected behavior is that the first one rejects to a "CANCELLED" error and the second resolves to location.

[CoryWritesCode]

Without this code, in the example in #67 this is what happens if I add the logs like you mentioned.

[douglasjunior]

In my example I assume that the permission was accepted ou rejected permanently, if the execution flow is stopped by the permission dialog, then the order of the events can change.

Please try again with and without your fix.

[CoryWritesCode]

What's seen above is without the fix.

With my fix the console logs are the same, I just don't get a crash after attempting a second getLocation() request

[CoryWritesCode]

The xcode logs are:

With Fix:

Without Fix:

[CoryWritesCode]

Sorry for that extra commit. Had to many terminals open at once