[Feature] - dG3D Material Law for SCU-TH including extra inputs
- Appended GRU law to include process previous step strains and extra inputs
 - Appended GRU law to process delta of Strains and extra Inputs
 - Added a sunroutine that normalizes dt seperatly for SCU
 - Removed some retundent commented code
 - Processed some hard coded params
 
GRU Tests - Pass SCU Tests - Pass