significant update to HystereticSM material

[silviamazzoni]

fixed the energy calcs. they are now different from Hysteretic because hysteretic accumulates ductility damage, hystereticSM doesn't.

• Feb 2026 Update 1: Added a new input rotY to be used when the deformation represents plastic-only deformation. The user-defined value of rotY is added to eps1 to compute the current ductility level (= current strain/(eps1+rotY)). You can define different values in positive and negative. This new argument affects the damage-parameter calculations as well as the unloading stiffness.
• Feb 2026 Update 2: The second slope no longer needs to be positive; only the first stiffness does (in both directions).
• Feb 2026 Update 3: Fixed the damage parameters -- they no longer accumulate over cycles. ductility should not have done that
• Feb 2026 Update 4: Added a feature to the ductility damaga parameter. positive value: ductility excursions affect only that direction, negative value: both sides affect each other.

[silviamazzoni]

oops, didn't mean to include the project file and the os commands file, I haven't been able to include Gustavo's new content into my project.