[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