fixed mesh_info type/name clash, fixed 1D mesh_info, opencl_advec debug

hysop/backend/device/autotunable_kernel.py

hysop/backend/device/codegen/base/struct_codegen.py

hysop/backend/device/codegen/base/variables.py

...p/backend/device/codegen/kernels/directional_advection.py

hysop/backend/device/codegen/structs/mesh_info.py

...ackend/device/opencl/autotunable_kernels/advection_dir.py

hysop/backend/device/opencl/opencl_env.py

hysop/backend/device/opencl/opencl_operator.py

hysop/backend/device/opencl/opencl_types.py

...ckend/device/opencl/operator/directional/advection_dir.py

hysop/operator/tests/test_directional_advection.py