v8.60.0

ModelingToolkit v8.60.0

Diff since v8.59.1

Closed issues:

• structural_simplify gives error with TimeVaryingFunction + LinearInterpolation (#2190)

Merged pull requests:

• Set @icon for models and connectors (#2183) (@ven-k)
• Revive pss_graph_modia! (#2192) (@Keno)
• Optimize dummy derivative graph (#2193) (@YingboMa)
• Update ContextualVariables.md (#2194) (@asinghvi17)
• Pass arguments (including hierarchal ones) to Models (#2196) (@ven-k)