align CVX code, FDA and Rxnorm vaccines

[zhengj2007]

Vaccines from 3 systems need to align with each other. For example,

• VO_0010191 influenza, Southern Hemisphere, unspecified formulation (CVX code)
• VO_0010337 AFLURIA SOUTHERN HEMISPHERE vaccine (FDA) (parent: Afluria vaccine, trivalent)
• VO_0020488 Fluzone Quadrivalent 2016 Southern Hemisphere vaccine (RxNorm) (parent: Fluzone Quadrivalent)

VO_0010337 AFLURIA SOUTHERN HEMISPHERE vaccine and VO_0020488 Fluzone Quadrivalent 2016 Southern Hemisphere vaccine might be also subClassOf VO_0010191 influenza, Southern Hemisphere, unspecified formulation

[zhengj2007]

Following two terms may be same vaccine:

• VO_0019680 'influenza A virus A/California/7/2009 (H1N1) antigen 0.03 MG/ML / influenza A virus A/Hong Kong/4801/2014 (H3N2) antigen 0.03 MG/ML / influenza B virus B/Brisbane/60/2008 antigen 0.03 MG/ML / influenza B virus B/Phuket/3073/2013 antigen 0.03 MG/ML [Fluzone Quadrivalent 2016 Southern Hemisphe'
• VO_0020488 'Fluzone Quadrivalent 2016 Southern Hemisphere vaccine'

VO_0019200 and VO_0019121 might be subClassOf VO_0019686

• VO_0019686 (brandname vaccine + dose form)
• VO_0019200 and VO_0019121(brandname vaccine + dose form + quant factor), the brandname and dose form are same as VO_0019686