Changes to Update invoice

added the new optional request property bankId

added the new optional request property clientId

added the new optional request property clientRef

added the new optional request property confirmDate

added the new optional request property currency

added the new optional request property date

added the new optional request property description

added the new optional request property disableRounding

added the new optional request property exchangeRate

added the new optional request property generationCount

added the new optional request property headerDescription

added the new optional request property hideQuotePricing

added the new optional request property id

added the new optional request property isArchived

added the new optional request property isPaid

added the new optional request property items

added the new optional request property language

added the new optional request property payments

added the new optional request property recurring

added the new optional request property recurringAutoSend

added the new optional request property recurringDueDate

added the new optional request property sent

added the new optional request property sentEmailHistory

added the new optional request property type

added the new optional request property vatEnabled

added the new optional request property vatMode

added the new optional request property version