Dispatch calls stay on the map (v19)

1. 1

   Dispatch calls stay on the map (v19)

   v19

   Expected: An NCPD call nobody takes stays on the map for 20 minutes; once a unit takes it, it stays until cleared. The MDT Dispatch tab has Take, GPS, Drop and Clear

   Not tested on this build yet.

Results on v22b

Nobody has tested this on the current build yet.