Lead : add IsVendorLead

Documentation: https://wiki.idempiere.org/en/NF9.1_Vendor_Lead

Hi @Nicolas Micoud,

#3 - There is no danger there - IsCustomer/IsVendor flag are about the default ability to deal with the BP in sales or purchases, you can still deal with a Vendor in Sales Order, just that searching it is a bit more difficult (open the Info BP and clear the Customer=Yes)

The IsCustomer doesn't mean there is an order, it means the BP is intended to be used in sales - and I think that's the same meaning of IsSalesLead - and the same applies to IsVendor/IsVendorLead

#4 - agree with -> "to initialize the IsCreateOpportunity with @IsSalesLead@"

Regards,

Carlos Ruiz