Add new framework (decapodes + stock&flows) AMRs

[cthoyt]

• https://askemgroup.slack.com/archives/C03THCGK2DU/p1695832576732379
• https://algebraicjulia.github.io/Decapodes.jl/dev/ice_dynamics2D.json
• https://github.com/AlgebraicJulia/py-acsets/pull/33
• https://github.com/AlgebraicJulia/py-acsets/pull/35