Brand-new switch estimator + new discontinuous ODE model! (#338)

* Added more reasonable variable names and changes in descriptions

* Discontinuous test problem + variable and description changes for SE

* Update for switch estimator

* Start with playing around with DisTestDAE

* Big update for the switch estimator!

* Discontinuous ODE model + tests

* read only Parameters changed

* Black

* Typo

* Events on boundary or with high resolution should also count

* Fix for battery problem with residual tolerance

* Changes for PR

* Lint

* Added warning for computing local/global error

* Warning only for discontinuous test ODE problem

* Requested changes from @brownbaerchen

* Removed warning for piline

* Change to LogGlobalErrorPostStep hook

---------

Co-authored-by: Thomas Baumann <t.baumann@fz-juelich.de>