[Feature]: Get-AzDataLakeGen2ChildItem with -Recurse and -FetchProperty should support runtime filtering

### Description of the new feature

Using `Get-AzDataLakeGen2ChildItem -Recurse -FetchProperty` causes Get-AzDataLakeGen2ChildItem to make HEAD request for all directories and files.

CmdLet should provide runtime filtering to:
* get properties/ACLs only for directories: fetch (and display) only directories
* to limit amount of recursion: fetch (and display) only first n levels on directories and/or files

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Alternative approach:
1. Run `Get-AzDataLakeGen2ChildItem -Recurse`
2. Filter results
3. Run Get-AzDataLakeGen2Item -Path $_.Path for all filtered results.

### Proposed implementation details (optional)

_No response_

Start at the Get-AzDataLakeGen2ChildItem cmdlet and trace how -Recurse and -FetchProperty currently enumerate items and issue HEAD requests. Define and implement the runtime filtering and recursion-depth behavior for directories and files, then verify that filtered results fetch and display only the requested properties.

Written by the indexing model from the issue text.