Basic Log to File

[hoppermeister]

This is a basic implementation of logging of the OCR output to a specified text file. It could be made a lot more robust, but this unblocks a lot of possible external integrations.

TODOS this doesn't do yet but should:

• Test that the given file location is valid before accepting it/creating it
• Include a timestamp, with options for modifying the separator (this could possibly be included in the templating feature)
• Implement a maximum log file size and line count option
• Option for different writing the log at a different timer frequency than the main OCR poll

Built and tested on Windows only so far

[royshil]

@hoppermeister great work! let's get the basics in there and buiding and I can pick up the rest...

[royshil]

closing this as ive implemented in #9