NXDN: Initial GPS Report Commit;
NXDN: Don't assign GI, TG/RID in VCALL_ASSGN; Leads to duplicate entries in Event History, particularly when private call;
NMEA: Sentence Checker with start, end, checksum, and supplimentary string checks P25p1 Tier 1 Location Service and Also observed on old Type-D system;
LRRP: Fix LRRP.exe style reports to use date/time strings with colons and slashes;
NXDN: Tweak to DCALL to check for a selective retry when blk_num is not equal to pf_num and invalidate, we don't have the memory of the last PDU attempt (and may have successfully received it anyways, even if the radio did not);