add a coordinate out of bounds check

[RobLBaker]

Similar to dates out of bounds, check if any coordinates in the dataset are outside the boundaries of the parks listed in the metadata.

potential issues: need to identify GPS coordinates in both data and metadata
potential issues: currently, content units are described by rectangles that completely enclose the actual park; this includes a lot of non-park areas points that are adjacent to parks may not get flagged by this function if those same content unit boundaries are used to check.

Look at QCkit::validate_coord as a starting place:

https://nationalparkservice.github.io/QCkit/reference/validate_coord.html