Nothing spectacular: added missing snippets and few completers.

[bielawb]

This time just a few minor additions:

• changed Get-Command -Noun to support -Module (if provided)
• added *-VMNetworkAdapter -VMName Foo -Name
• added Set-StrictMode -Version
• added Get-WinEvent -LogName
• snippets for native commands and initializer/ completer pair

[lzybkr]

Thanks - changes have been merged.