Fix US start market dates

[grishagin]

NMEs listed in novel drugs sheet should have the same market date in stitcher.

For example: https://stitcher.ncats.io/api/stitches/latest/ISP4442I3Y
Start market date is 2018, not 2010.


Likewise,
https://stitcher.ncats.io/api/stitches/latest/XGF7L72M0F
{

• kind: "Marketed",
• source: "FDA NDC",
• id: "DB13961:2",
• sponsor: "Medecor Pharma, Llc",
• product: "Tricare Prenatal DHA One",
• route: "Oral",
• created: 1562629867826,
• jurisdiction: "US",
• comment: "67112-401",
• startDate: "2012-01-01",
• URL: "https://www.drugbank.ca/drugs/DB13961"

},

Likewise,
https://stitcher.ncats.io/api/stitches/latest/8GB79LOJ07
{

• kind: "Marketed",
• id: "8GB79LOJ07:5",
• source: "Rancho BioSciences, March 2019",
• sponsor: "Gilead Sciences",
• product: "BIKTARVY",
• route: "Oral",
• created: 1562632398980,
• jurisdiction: "US",
• startDate: "2017-02-06",
• URL: "https://adisinsight.springer.com/drugs/800041516"

},