Diabetes model -> v.0.1.0

[RoryWatts]

• [x] Remove broken node_types e.g. "function"
• [x] Change country from ARG to AFG
• [x] This may reveal a big issue when running for 100 years - this is because CFR needs to be flushing, and it is not.
• [x] Update link labels with source.label and target.label using replace_link_labels.py
• [x] Replace DW work with Healthy Years Lived
• [x] Remove subgraph_routines
• [x] Add subroutines
• [x] make sure surrogates have flush enabled
• [x] Add in the equilibrium

[RoryWatts]

Equilibrium nodes have to be identified by their ID not their label