Add VO2Max to Health units

[mleprince]

Hi,

I want to add VO2Max unit to the health module. It is expressed in mL/min/kg.

VO2MAX_UNIT = LITRE.divide(1000).divide(MINUTE).divide(KILOGRAM);

Do I just need to define this constant in this file (Health.java) ?

I will also declare the Quantity in the health-api :

  public interface VO2Max extends Quantity<VO2Max> {}