Fix validating Bundle for whenInUse permission

[jonasrottmann]

IfInfo.plist only contained NSLocationWhenInUseUsageDescription, then requesting the .whenInUse permission would throw because of Bundle.hasWhenInUsePermission() where NSLocationAlwaysAndWhenInUseUsageDescription was checked mistakenly. Also the deprecated NSLocationAlwaysUsageDescription has been replaced by NSLocationAlwaysAndWhenInUseUsageDescription which now also matches the table in the README.md.

[hactar]

Had this issue too when requesting .whenInUse. Worked around it by adding NSLocationAlwaysAndWhenInUseUsageDescription into the plist too, but this looks like the actual fix.

[MartinStrambach]

@malcommac Could you please take a look a this?

[malcommac]

You're right, this is the right fix. i'll merge it for 6.1.0. Thank you!