Remove FBI NIBRS namespace

[cdmgtri]

Code sets moved

The following code sets were moved to the UCR namespace (#59):

• nibrs:NIBRSReportCategoryCodeType
• nibrs:ReportActionCategoryCodeType
• nibrs:VictimToSubjectRelationshipCodeType

Code sets removed

The following code sets overlapped existing UCR code sets and were removed:

• nibrs:CriminalActivityCategoryCodeType (#36)
• nibrs:LocationCategoryCodeType (#37)
• nibrs:OffenseCodeType

[cdmgtri]

Removed in NIEM 4.2-beta1.