feat: Have a new command-line argument to expose smb folder to share from host to guest

[danhertztech]

I confirm this feature has not been previously requested

• [ x] I have searched the issues and this feature has not previously been requested

Is your feature request related to a problem? Please describe.
I am able to use smb on my guest machine to see and interact with files on my host's ~/Public folder (use smb://10.0.2.4/qemu in guest). I would like to expose my user $HOME folder, or $HOME/documents folder, instead. Is that possible, and if so, what settings do I need to make?

Describe the solution you'd like
Run "quickemu --display spice" and add another switch to specify shared smb folder (e.g. "--smb-folder /root/home/username/documents")

Describe alternatives you've considered
No alternatives. For now I move the files to the ~/Public folder, and move them back when I'm done accessing them in my VM. Not a good work flow.

Additional context
I am on PopOS! (Ubuntu) host, using MacOS Monterey and Windows 11 guests.

I checked the following info:
https://github.com/quickemu-project/quickemu/wiki/05-Advanced-quickemu-configuration/2f9ba59ba41f3b0bc38fd32f9ef2395d830acca3#samba---

https://www.reddit.com/r/commandline/comments/v85fmx/comment/ibz09si/

Thank you for your assistance!