added Master model to schema to contain the master list of orders. racquets are associated by master_id which represetns a merger of old and new order_ids, or a singular unmatched new or old order
added Masters model fields including fields for filemaker data and excel data
master order set created; will use sqlite3 exporter to transform it to CSV
Merge pull request #2 from blueyeco/create-master-dataset

Create master dataset