Enhances 'spo file list' with fields and filter options. Closes pnp#4654

docs/docs/cmd/spo/file/file-list.md

@@ -16,21 +16,106 @@ m365 spo file list [options]
 `-f, --folder <folder>`
 : The server- or site-relative URL of the folder from which to retrieve files
 
+`--fields [fields]`
+: Comma-separated list of fields to retrieve. Will retrieve all fields if not specified.
+
+`--filter [filter]`
+: OData filter to use to query the list of items with
+
 `-r, --recursive`
 : Set to retrieve files from subfolders
 
 --8<-- "docs/cmd/_global.md"
 
+## Remarks
+
+When the `fields` option includes values with a `/`, for example: `ListItemAllFields/Id`, an additional `$expand` query parameter will be included on `ListItemAllFields`.
+
 ## Examples
 
-Return all files from folder _Shared Documents_ located in site _https://contoso.sharepoint.com/sites/project-x_
+Return all files from a folder
 
 ```sh
 m365 spo file list --webUrl https://contoso.sharepoint.com/sites/project-x --folder 'Shared Documents'
 ```
 
-Return all files from the folder _Shared Documents_ and all the sub-folders of _Shared Documents_ located in site _https://contoso.sharepoint.com/sites/project-x_
+Return all files from a folder and all the sub-folders
 
 ```sh
 m365 spo file list --webUrl https://contoso.sharepoint.com/sites/project-x --folder 'Shared Documents' --recursive
 ```
+
+Return the files from a folder with specific fields which will be expanded
+
+```sh
+m365 spo file list --webUrl https://contoso.sharepoint.com/sites/project-x --folder 'Shared Documents' --fields "Title,Length"
+```
+
+Return the files from a folder that meet the criteria of the filter with specific fields which will be expanded
+
+```sh
+m365 spo file list --webUrl https://contoso.sharepoint.com/sites/project-x --folder 'Shared Documents' --fields ListItemAllFields/Id --filter "Name eq 'document.docx'"
+```
+
+## Response
+
+=== "JSON"
+
+    ```json
+    [
+      {
+        "CheckInComment": "",
+        "CheckOutType": 2,
+        "ContentTag": "{F09C4EFE-B8C0-4E89-A166-03418661B89B},9,12",
+        "CustomizedPageStatus": 0,
+        "ETag": "\"{F09C4EFE-B8C0-4E89-A166-03418661B89B},9\"",
+        "Exists": true,
+        "IrmEnabled": false,
+        "Length": 331673,
+        "Level": 1,
+        "LinkingUri": "https://contoso.sharepoint.com/sites/project-x/Shared Documents/Document.docx?d=wf09c4efeb8c04e89a16603418661b89b",
+        "LinkingUrl": "https://contoso.sharepoint.com/sites/project-x/Shared Documents/Document.docx?d=wf09c4efeb8c04e89a16603418661b89b",
+        "MajorVersion": 3,
+        "MinorVersion": 0,
+        "Name": "Document.docx",
+        "ServerRelativeUrl": "/sites/project-x/Shared Documents/Document.docx",
+        "TimeCreated": "2018-02-05T08:42:36Z",
+        "TimeLastModified": "2018-02-05T08:44:03Z",
+        "Title": "",
+        "UIVersion": 1536,
+        "UIVersionLabel": "3.0",
+        "UniqueId": "f09c4efe-b8c0-4e89-a166-03418661b89b"
+      }
+    ]
+    ```
+
+=== "Text"
+
+    ```text
+    Name                               ServerRelativeUrl                                UniqueId
+    ---------------------------------  -----------------------------------------------  ------------------------------------
+    Document.docx                      /sites/project-x/Shared Documents/Document.docx  5eb97525-2167-4d26-94b8-092a97d65716
+    ```
+
+=== "CSV"
+
+    ```csv
+    Name,ServerRelativeUrl,UniqueId
+    Document.docx,/sites/project-x/Shared Documents/Document.docx,5eb97525-2167-4d26-94b8-092a97d65716
+    ```
+
+=== "Markdown"
+
+    ```md
+    # spo file list --webUrl "https://contoso.sharepoint.com" --folder "Shared Documents"
+
+    Date: 23/3/2023
+
+    ## Document.docx (5eb97525-2167-4d26-94b8-092a97d65716)
+
+    Property | Value
+    ---------|-------
+    Name | Document.docx
+    ServerRelativeUrl | /sites/project-x/Shared Documents/Document.docx
+    UniqueId | 5eb97525-2167-4d26-94b8-092a97d65716
+    ```