Merge the DGS data into the overall BDG dataset using the standard data format

[cmiller8]

The DGS data has been simply dumped in the raw data folder

• Modify the DGS meta and temp files to match the format of the rest of the BDG
• Change each building name to an UID that uses the existing "HumanName_PrimaryUse" schema
• Merge the data sets and clean up the repository