OPS-COM Parking Enforcement

Invalid date

- resolve plate/permit search where vehicle type and plate type were not part of criteria
- fixes minor crash due to no GPS coordinates being available
- added support for discount display on printed tickets
- updated violation type spinners to include all details where possible  (previously data was truncated at 40 characters)
- updated so that DNTT details are shown even for non-writer locations (now shows details with blank location)

Full release notes: https://wiki.ops-com.com/x/YwEdAg