Missing info about file globbing

### Type of issue

Missing information

### Description

(From anonymous verbatim.)

File globbing (dating back to POSIX specifications) require *, ? and [] support. Are they supported though?

What about the common /**/ syntax for "recursive" patterns.

What about ! negations in []?

What about case sensitivity? Is it OS specific?

This documentation is awefully incomplete!

### Page URL

https://learn.microsoft.com/en-us/dotnet/core/extensions/file-globbing

### Content source URL

https://github.com/dotnet/docs/blob/main/docs/core/extensions/file-globbing.md

### Document Version Independent Id

035af7b0-7f18-ca54-8b9b-b34f5bca91a2

### Platform Id

a2d27a66-5150-d364-88c5-dfa219df4864

### Article author

@gewarren

### Metadata

* ID: d6db410d-be0d-395f-64fe-67018b82f36f
* PlatformId: a2d27a66-5150-d364-88c5-dfa219df4864
* Service: **dotnet-fundamentals**

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