Improve time zone handling in generateQueries_1

[aweinert-MIT]

generateQueries_1.m create queries based on the local time zone of the minimum longitude coordinate of a bounding box. A large bounding box may span multiple time zones, so the minimum longitude coordinate may not be representative. A user may also want to create queries not based on the local time zone.

To resolve this issue:

• Check that the time zone for the minimum and maximum longitude coordinate are the same. If not, split the bounding box to enforce time zone consistency; or implement an alternative to splitting the bounding box.
• Option for bounding boxes to based on a global UTC time, instead of local