AMICI-dev/AMICI: AMICI v0.11.7

Python Improve and extend available objective functions (#1235) Fix processing of compartment definitions (#1223) Fix replacement of reserved symbols (#1265) Use Hierarchical Derivatives for Expressions (#1224, #1246) Fix duplicate running of swig (#1216) Overload python interface functions for amici.{Model,Solver,ExpData} and amici.{Model,Solver,ExpData}Ptr (#1271) C++ Fix and extend use of sparse matrix operations (#1230, #1240, #1244, #1247, #1271) Fix application of maximal number of steps, MaxNumStep parameter now limit total number of steps, not number of steps between output times. (#1267) Doc Move all Documentation to RTD (#1229, #1241) General Improvements to Documentation (#1225, #1227, #1219, #1228, #1232, #1233, #1234, #1237, #1238, #1239, #1243, #1253, #1255, #1262) CI Better check for doc building (#1226) Add more gradient checks (#1213) Update GHA to Ubuntu 20.04 (#1268