Various Norid fixes and a Metaregistrar addition

[alexrsagen]

• Norid: Fixes class name conflict between noridEppWithdrawDomainRequest and noridEppWithdrawContactRequest
• Norid: Fixes class name conflict between noridEppWithdrawDomainResponse and noridEppWithdrawContactResponse
• Norid: Fixes XML namespace being wrong in noridEppWithdrawDomainRequest
• Norid: Fixes $updateInfo not being passed to updateExtContact in noridEppUpdateContactRequest constructor
• Metaregistrar: Adds metaregInfoDomainResponse with methods to read values from the command-ext-domain-1.0 extension

[joveice]

Tested and works like a charm.