Revise syntax for improved compatibility with `dplyr`

[mjwestgate]

We've recently received feedback that the use of select_ prefix is confusing, because we use it for choosing both rows and columns, whereas it is more common (e.g. in dplyr, SQL) for filter to refer to rows and select to refer to columns. It's also inconsistent to use NSE in select_filters but not in other functions.

Proposed solution is to use galah_ prefix, followed by a dplyr equivalent suffix, e.g.

• galah_filter for rows
• galah_select for columns
• galah_group_by to pass to ala_counts

[daxkellie]

After discussion, we have decided to change select_locations to galah_geolocate. This change is consistent with the galah_ prefix solution because:

• the suffix is a verb (e.g., filter, select, group_by)
• This hopefully specifies more clearly that the function requires a specific input (e.g., a polygon or shape file) compared to galah_filter, which can also filter by broad locations like states/territories.