Add option to filter out file/folder suggestions when completions are automatically triggered by a space

[MartinGC94]

Prerequisites

• [X] I have written a descriptive issue title.
• [X] I have searched all issues to ensure it has not already been reported.

Summary

I think the constant file/folder completion suggestions are distracting and I'd like to reduce those distractions. For example, if I type in a command like: Clear-Disk -Number 0 -RemoveData -RemoveOEM it will show unwanted file completions 4 times, once after the command and once for every space after each parameter/parameter value.
If you repeat this experiment in ISE you will note that it doesn't show any file completions. This is because ISE filters out file/folders from the automatic IntelliSense that is triggered by space.

Ideally something would be done about this in PowerShell itself to but unfortunately support for 5.1 has to be considered as well so adding an option in the extension would be nice.

Proposed Design

No response