Symptoms

Whilst it is not utilised just yet, the symptoms system is scripted and complete (just need to add more). Variables are 0-1 and are set on the unit directly, not the blood data. They are currently as follows: - KJW_MedicalExpansion_Symptoms_Cough - KJW_MedicalExpansion_Symptoms_Sneeze - KJW_MedicalExpansion_Symptoms_Sniff