Fda vaccine update pull request

[xingxianli]

No description provided.

[zhengj2007]

1. rename vaccine_FDA.csv to vo_FDA.csv
2. no need to add new term 'GlaxoSmithKline Biologicals' and 'GlaxoSmithKline Biologicals SA', we can use VO:0000690 'GlaxoSmithKline plc'. Add 'GSK' as alternative term of VO:0000690 'GlaxoSmithKline plc'
3. 'vaccine monovalent role' and 'vaccine multivalent role' are subClassOf 'vaccine role'. Definitions are also need to be improved.
   'vaccine monovalent role' is 'A vaccine that is designed to immunize against a single antigen or single strain of a pathogen.'
   'vaccine multivalent' is 'A vaccine that is designed to immunize against multiple antigen or multiple strain of a pathogen.'