Added DataDocument for creating a view of required NetSuite Fields

[Chinmay2107]

###This is functioning properly except for fields that are required to be queried twice:
##Limitations:

• The ContactMech.infoString field needs to be fetched for both SHIPPING_EMAIL and BILLING_EMAIL purposes.
• How DataDocument behaves in this scenario is that it fetches any one of the fields either SHIPPING_EMAIL or BILLING_EMAIL and puts it in the aliased fields.
• If multiple conditions are to be applied on any one field, I am not able to figure out any way for it (I used in operator for now to fetch eligible records)
  • If in operator is used then suppose if one of the contactMechPurposeTypeId has no corresponding record then in that case it fetches all the contactMechs from the entity and prints them in the document (SHIPPING_EMAIL is null in my case)
• OrderAdjustment. The amount field needs to be fetched for item level discounts and shipping charges.