removeDataPackage function (or equiv. parameter for existing function)

[juddpatterson]

By default getDataPackage() leaves both the zipped and unzipped data packages on the file system of the computer. A cleanup function could be run as needed to avoid cluttering up the file system.

For example, someone could run these in sequence:

• getDataPackage(1234567) -- to download a data package from Data Store
• loadDataPackage(1234567, dataFormat = "CSV") -- to load that data package into a data frame
• getAttributes(1234567, metadataFormat = "EML") -- to load attributes from the metadata into a data frame
• removeDataPackage(1234567) -- to delete the zip and unzipped files since everything needed is now in memory

[RobLBaker]

This is a good idea. Bumping it up in the queue

[RobLBaker]

added a function delete_packages() but haven't pushed to the main branch yet.

[RobLBaker]

changed the function name to rm_local_packages() to emphasize the deletion is NOT occurring on DataStore.