Create method to get all IPC messages that are not from IPOS

[drinking-code]

started getNonIPOSMessages:

inter-process-object-sharing/src/main.ts

Line 73 in 5a7031f

/*public getNonIPOSMessages(process: ChildProcess, handler: (message: any) => any) {

inter-process-object-sharing/src/messaging.ts

Line 69 in 5a7031f

/*getNonIPOSMessages(handler: (message: any) => any) {

Should (obviously) work on both main process and subprocess