[Feature] Write output to log file on exit

[iwr-redmond]

It may be helpful to adopt a library like shpyx that offers the ability to capture the output from the running process.

This would then allow for:

• The output log to be written to a config.ini specified file/directory at exit
• Live output to be made available for debugging, e.g. when an environment variable like REAPP_DEBUG_MODE is detected

[andrew-bedford]

Thanks @iwr-redmond , I like the idea! I'll look into it when I can.