Updating net/p5-Nmap-Parser from 1.16nb1 to 1.19

pkgsrc changes:
  - Adding license definition
  - Adjusting dependencies

Upstream changes (since 1.16):
Changes for 1.19
- Added enhancement request by stevekatieterabyte for tcp_del_port and udp_del_port
  (Thanks!). Modified the patch to work with a list of ports.
- Added Robin Bowes' modification of nmap2sqlite as nmap2db to support MySQL (Thanks!)

(sno)