Implements a parsing mechanism similar to that of an FFmpeg on the command line. Instead of separating options by ';' (key=value;key=value) the custom settings now take things as '-key=value -key=value -key="value with space"'.
A partial escaping of characters is also supported, however it does not modify the actual string. Proper support for escaping may land in a future update.
Fixes#5
Related #12
Michael Fabian 'Xaymar' Dirks
ad761834ee