Describe "Koan(s) You Suggest"

We need a koan topic for advanced function usage.

Context "The Scope of the Koans You Suggest"

Should cover:

• Pipeline parameters (how to declare them, types of pipeline input, how to use them)
• Overview - Parameter attributes, including type constraints and built in attributes to modify binding behaviour.
• What [CmdletBinding()] is for and how to make use of it.
• Overview - Parameter sets
• begin/process/end blocks
• ShouldProcess support
• Overview - Common parameters
• How to work with $PSCmdlet