Add koans for working with versions

[vexx32]

Describe "Koan(s) You Suggest"

Some koans for how to handle, compare, and create [version] objects in PS would be useful.

Context "The Scope of the Koans You Suggest"

A common error is something like [version]1.0.2.0 or $version -eq 1.0.2.1 both of which pass $null to the resulting comparison or conversion; 1.0 is a number of type [double], and subseqent . invoke property accessors which will throw in Strict Mode but return $null in normal circumstances, creating confusion.

Context "Additional Information"