Add option to query for PID ranges

[mjordan]

E.g., --pid_range=<1000, '--pid_range=>1000, --pid_range=1000-2000`.

Possible syntax: PID:[* TO islandora:1000] , PID:[islandora:1000 TO *] , PID:[islanodra:1000 TO islandora:2000] .

[mjordan]

Queries like PID:[islandora\:110 TO islandora*] don't work, probably because the end of the range is open ended. Queries like PID:[islandora\:110 TO islandora\:9999999] and PID:[islandora\:0 TO islandora\:117] do work however.

[mjordan]

I'm now wondering if instead of providing shortcuts to do queries we should just document a bunch of different types of queries under the "Fetching PIDs" section.

[mjordan]

Another useful query: get all objects that have the word "sample" in the mods_note_t field:

drush islandora_datastream_crud_fetch_pids --user=admin  --solr_query=mods_note_t:sample --pid_file=/tmp/sample_pids.txt

The PID range query from the previous comment can be used like this:

drush islandora_datastream_crud_fetch_pids --user=admin  --solr_query="PID:[islandora\:110 TO islandora\:9999999]" --pid_file=/tmp/higherthan110.pids