- Add Galerking Least Squaes Stabilization (GLS) (easy for linear equation)
- Includes addition of div3d3 and gen3d1 in tensoroperations module
- Includes gls keyword in input.yml with 5 parameters
- 3 new test cases added (heat, stress, r13)
- Method works out nicely, especially for R13 case!
- Further studies needed (use better computer for finer meshes)