get https://api.nortridgehosting.com/29.1/setup/contact/relationship-codes//fields
Returns a list of Contact Relationship UDF Settings for a given Relationship_Code_Id
Field_Type Column: 0 for Text, 1 for Numeric, 2 for Date, 3 for Drop Down, 4 for Drop List, 5 for Checkbox, 6 for Button, 7 for Documents, 8 for Grid
Field_Attribute Flag: 0 for None, 1 for Disabled, 2 for Required, 3 for Hide, 4 for Readonly
Option_Flags Flag: 0 for None, 1 for Mixed Case, 2 for Unlimited Text, 8 for Hide Calculator, 64 for Rich Text Format