Allow for multiple GPS locations when using GPS checking

[chuckackerman]

Unfortunately I have to turn on GPS location checking because one jerk on the xLights forum thinks it's funny to flood my show with votes. GPS isn't ideal but it's now a necessity.

However, I have two daughters who watch my show with their family using a shared Wyze camera that is pointed to the house. They also like to vote for songs while watching just as somebody in their car would. With GPS turned on they can't vote. It'd be nice to allow multiple GPS locations to be entered into the GPS feature. In my case it would be 3 total GPS locations that I'd like to permit voting on the show.