Infinite loop of osc message when running on localhost

[bensteUEM]

Followup from #52 - if companion is running on the same system as songbeamer songbeamer logger shows an infinte number of message.

• [x] check if sending and receiving ports differ

[bensteUEM]

https://github.com/bitfocus/companion-module-songbeamer-osc/blob/1d31f99504a1e29528f2fe7dc046d0502bc0f188/src/main.js#L124

• [ ] extend config to allow other remote port
• [ ] verify config of local and remote port are not equal