Consider adding IFileSystemInfo returning APIs in addition to IFile and IDirectory

### Prerequisites

- [x] I have written a descriptive issue title
- [x] I have searched [issues](https://github.com/cake-build/cake/issues) to ensure it has not already been reported

### Cake runner

Cake Frosting

### Cake version

6.0.0

### Operating system

N/A

### Operating system architecture

x64

### CI Server

_No response_

### What are you seeing?

APIs like `IFileSystem`, `IDirectory` and `GlobberExtensions` have APIs that return either `IFile` or `IDirectory`, but, some times, we just want a file system entry and decide what to do with it based in whether it's a file or directory.

### What is expected?

`context.FileSystem.GetFileSystemInfo(path)`
`context.Globber.GetFileSystemInfos(pattern)`
`directory.GetFileSystemInfos()`

### Steps to Reproduce

Try getting a list of file system infos that contains both files and directories,

### Output log

_No response_

Start by locating the IFileSystem, IDirectory, and GlobberExtensions APIs mentioned in the issue, then inspect their existing IFile and IDirectory return patterns and related tests. Define the scope for returning file-system entries from the three requested entry points; done means mixed file and directory results are supported consistently and covered by tests.

Written by the indexing model from the issue text.