s.PBX preset library v1

• common/condition/dialed-internal.json
• common/condition/from-internal.json
• common/condition/from-trunk.json
• common/flow/answer.json
• common/flow/hangup.json
• common/flow/receive-audio-from-parent.json
• common/flow/send-audio-to-parent.json
• common/flow/silence-player.json
• common/flow/sound-wav.json
• common/flow/stop-audio-playback.json
• common/flow/wait-for-listener-to-start.json
• common/flow/wait-for-listener-to-stop.json
• common/sound/analog-signaling-generator.json
• common/sound/wav-file.json
• default/connect.json
• default/dial-external.json
• default/dial-internal.json
• default/internal-dialing.json
• stdlib.json
• voicemail.json