------------------- Added irregular section. Added in-plane axis for foundations.
0.9.43
------------------- * Added save_femesh * Fixed issue with poissons ratio in soil stack
0.9.42
------------------- * Added `lshort` and `llong` parameters to foundations * Minor changes to mesh algorithm to avoid divide by zero warnings
0.9.41
------------------- * Added `SingleWall` * Foundation now has `.mass_density` to explicitly define it as the mass density * Fixed bug with `StressDependentSoil.set_curr_m_eff_stress_from_g_mod()`
0.9.40
------------------- * In function `get_surface_node_indices` ordered surface node indices left to right * Foundation object now accepts kwargs and adds them to object if already in `inputs` * Added additional properties to RC section
0.9.38
------------------- * Fixed surface meshing issue * Added `loop` to TwoDSystem for length out-of-plane.