Initial Hysteresis State Parameter Wycisk Hysteresis

[mleot]

Description

This would allow for the initial hysteresis state to be controlled by a parameter in the user-supplied parameter set.

Motivation

The default initial hysteresis state is 0 (from -1 to 1 range) which will often likely not be the case in real cells experiencing hysteresis, at the top or bottom of SoC.

Possible Implementation

Add the initial hysteresis state to the lithium ion parameters, and reference it in the Wycisk OCP module.

Additional context

This issue was created as a result of #4332 and just targeting the initial hysteresis state of portion of that issue.

The PR #4374 will be used to fix this issue.

[mleot]

The remaining features not covered in this issue are:

• restructure wycisk ocp to accept FunctionParameters
• restructure wycisk $$\frac{dh}{dt}$$ function to accept $$\gamma$$