start licensing TPTP layered soil examples

...yered-soil-case/TP-TP-layered_soil-different-intrinsic.py

...TP-layered-soil-case/TP-TP-layered_soil-second-example.py

...multi-patch/TP-TP-layered-soil-case/TP-TP-layered_soil.py

...tch/TP-TP-layered-soil-case/TP-TP-layered_soil_pure_dd.py

...-case/mesh_study/TP-TP-layered_soil_pure_dd_mesh_study.py