Asterisk/app_rpt AMI events

rpt_events adds support to receive events via Asterisk Manager Interface (AMI) from app_rpt.

Supported variables events:

• EventName: "RPT_RXKEYED", EventValue: 0|1
• EventName: "RPT_ETXKEYED", EventValue: 0|1
• EventName: "RPT_LINKS", EventValue: NUMLINKS,MODE NODEMUMx[,MODE NODEMUM...]
• EventName: "RPT_NUMLINKS", EventValue: NUMLINKS
• EventName: "RPT_TXKEYED", EventValue: 0|1
• EventName: "RPT_ETXKEYED", EventValue: 0|1
• EventName: "RPT_ALINKS", EventValue: NUMALINKS
• EventName: "RPT_NUMALINKS", EventValue: NUMALINKS,NODEMUM MODE RXKEYED[,NODEMUM MODE RXKEYED...]
• EventName: "RPT_AUTOPATCHUP", EventValue: 0|1

Supported decoders events:

• EventName: "MDC-1200", EventValue: UnitID
• EventName: "DTMF" , EventValue: DTMF character