Add option to handle binary data

[jame]

Add an option that enables the handling of binary data (data without CRs or LFs), perhaps using "-r" and "--raw" as the possible command line parameters for it.

See also: https://sourceforge.net/p/ttylog/feature-requests/7/

[jame]

A previous attempt to add an option like this was described as follows:

-r, --raw to get data without the default '\n' for every line, e.g. this could be useful when playing with
Arduino Sketches which already have '\n' as part of their Serial.print()/println() statements.

So that would simply assume not to add a '\n', which might have been resolved by other recent changes.

[valerionew]

+1 on this feature, it would be really awesome