Avoid symbolic replacements for handling reserved symbols in amici.
Instead, only handle them during code printing. This has the advantage that
users won't be bothered by changed IDs.
This, however, makes it a breaking change for anybody currently relying on "amici*" entity IDs.
I don't expect this to be much of a problem, since probably most users would have renamed their model
entities to avoid this "amici"-prefixing.
Avoid symbolic replacements for handling reserved symbols in amici. Instead, only handle them during code printing. This has the advantage that users won't be bothered by changed IDs. This, however, makes it a breaking change for anybody currently relying on "amici*" entity IDs. I don't expect this to be much of a problem, since probably most users would have renamed their model entities to avoid this "amici"-prefixing.
Fixes https://github.com/AMICI-dev/AMICI/issues/2461.