Ham::APRS::FAP version 1.18

A new version of our APRS packet parser has recently been released on CPAN. It contains new features and bugfixes made by both myself and Tapio, OH2KKU. Here's a list of changes:

• Added Ham::APRS::IS module - an APRS-IS client library
• Fixed position resolution calculation for whole degree cases, and added tests
• Implemented a 'raw_timestamp' option to return undecoded timestamps in all but status packets
• Added tests for timestamp and status message parsing
• Added support for new base91 comment telemetry