Assign UNII to each stitcher event

[grishagin]

Ensure that each event generated on a stitch it tied to a specific UNII or ingredient.

For example:
http://localhost:8080/api/stitches/latest/9842X06Q6M

What are all the substance forms that are currently marketed, and which product and substance form was marketed first?

{

• kind: "USApprovalRx",
• source: "Drugs@FDA",
• id: "9842X06Q6M",
• sponsor: "SCHERING",
• product: "CELESTONE",
• created: 1541273907076,
• jurisdiction: "US",
• active: "true",
• comment: "012657/003",
• approvalAppId: "NDA012657",
• startDate: "1961-04-17",
• URL: "https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?event=overview.process&ApplNo=012657"

},

{

• kind: "USApprovalRx",
• source: "spl_acti_rx.txt",
• id: "NDC 0085-0566",
• product: "BETAMETHASONE ACETATE AND BETAMETHASONE SODIUM PHOSPHATE",
• created: 1541273907114,
• jurisdiction: "US",
• active: "true",
• startDate: "1965-03-15",
• approvalAppId: "NDA014602",
• URL: "https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=7b5489a1-e30f-450f-bd2b-00d05fd52915",
• productCategory: "HUMAN PRESCRIPTION DRUG LABEL",
• marketingStatus: "NDA"

},