Paths in YAML file require escaped backslashes (\\) when using windows

[jwouters91]

When running shybrid on a windows machine, the paths provided in the YAML file need to have their backslashes escaped:

C:\\path\\to\\some\\folder instead of C:\path\to\some\folder

Preferably, if technically possible, this should be handled at the level of loading the YAML, rather than depending on the goodwill of the user to escape their backslashes.