Added parameters on different Get for Vouchers

[Fredrik Kurki]

For all Gets in Voucher we added Period as an optional parameter. This parameter can of course be disregarded, since it's optional. 

[tsvensso]

Hi Fredrik, 

Does the Period apply to bookingDate? 

Or is there a created and changed date for the vouchers and voucherrows and it applies to one of those?

Regards

/Thomas

[Fredrik Kurki]

Hi Thomas

The period is the booking dates period

BR/ Fredrik