Extend namespace codelist to include DCAT-US bureauCode and programCode

[hmaier-fws]

Extend adiwg_namespace codelist to include DCAT-US bureauCode and programCode. This will support translation of all required DCAT-US attributes.

{code: "org.adiwg.code.bureauCode", codeName: bureauCode, description: "DCAT-US combined federal agency and bureau code from OMB Circular A-11."}
{code: "org.adiwg.code.programCode", codeName: programCode, description: "DCAT-US Federal Program Inventory program code."}