[IMPROVEMENT] Option to treat &ampersand as literal in cli path arguments

[eugenesvk]

Please confirm these before moving forward.

• I have searched for my feature proposal and have not found a work-in-progress/duplicate/resolved/discarded issue.
• This improvement refers to an existing feature. If you want to suggest a new feature, please use this template.
• This improvement is not a bug. If you want to report a bug, please use this template.

Describe the improvement

(not 100% sure whether this is a bug as I don't fully understand what the relevant syntax UniGet uses in this context since I couldn't find an escape char and a similar bug was already fixed #3904)

When passing --location to WinGetCli, I'd like to have an option to treat & ampersand char as literal so that --location "C:\Program Files\App&Name" will use the App&Name as the directory name.

(It seems that currently UniGetUI uses some syntax that doesn't allow that, though I couldn't figure out how to escape it either, which should be possible in a syntax, ""a&b&c^&d~&e&'&'&&""didn't work to produce a single&` in the command-line to run box)

Describe how this improvement could help users

Not worrying about &ampersands in their paths