Discussed in #2851

Introduce markdown output for documentation purposes. The Markdown output can be used with each command using --output md.

For get commands the output should be as follows:

Title/DisplayName/Name (Url/ID)

For list commands the output should be as follows:

Title1/DisplayName1/Name1 (Url/ID1)

Title2/DisplayName2/Name2 (Url/ID2)

• each section starts with a heading made of display name and an ID between brackets
• to create the display name, the CLI will check if the object sent to output has a property named title, displayName or name (in this order). The value of the first property matched is used in the heading
• in some cases properties can be named using Pascal case, like Title, DisplayName or Name, which we also need to take into account
• to disambiguate between items with similar titles, the heading also contains either the url or or the id (again, take into account different casing variations, like Url, Id or ID)
• the body of each section contains a table of key-value pairs for all properties including the properties used in the heading

Commands that already have an MD output, will keep the current output they already use.

Checklist:

• md output registered in the base class
• md output handles differently list and non-list (get, set, remove) output
• md output can be configured as default with CLI settings
• https://pnp.github.io/cli-microsoft365/user-guide/cli-output-mode/ is updated with the MD output mode
• check that command with specific md output (eg. spfx project upgrade) still work as previously