Relax file naming restrictions

[ssvine]

This pull request fixes this issue

To relax file naming restrictions it makes several fixes:

• Use NT-style names internally
• Remove restrictions on reserved names (CON, PRN, AUX, COM1, ...) and on trailing dot or space, since they don't apply to NT-style names

Also this pull request doesn't use the default file mask *.* (for multiple files) or a file name (for a single file) in Copy / Move dialogs (copy to / move to edit box) to be similar to Far Copy / Move dialogs. Moreover, some file names may conflict with file masks (in case of a single file copy or move), preventing the original file name from being used. An example: abc.txt. will be copied to the local system as abc.txt.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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