Hysteretic & Hystereticc-- flexSDOF

Key to Plot Legend -- variable Hysteretic

Shy	Hysteretic: baseline
Sha	Hysteretic: set pinchX 0.8; set pinchY 0.2
Shb	Hysteretic: set pinchX 0.2; set pinchY 0.8
Shc	Hysteretic: set damage1 0.01
Shd	Hysteretic: set damage2 0.35
She	Hysteretic: set betaMUsteel 0.5
Sp4	Pinching4: set rDispP 0.8; set rForceP 0.2;