Clone of gp_supply_agent_model

for demo purposes to show an agent based model.

agent is the folder 'GP'

-A GP is in a state of either

-practicing

-retired

-maternity_paternity

-practicing elsewhere (candidate could migrate in to catchment of interest)

GP_Workforce is made of 500 GP agents

click simulate many times to see the different output

note: i didnt introduce trainees so the workforce in a 'practicing' state tends to 0.