Update to C# template

- splits generated code into more files when model is too big (for VS)
- a workaround (a HACK) to not generate useless start values assignments in FunInitialEquations() (we do not hold start values of states in any array, they are set in the model instance itself; so we need this workaround)

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@15698 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Author: pavolpr