ENH: createPatch: demo case

.../mesh/createPatch/TJunctionSwitching_createPatch/Allclean

...ls/mesh/createPatch/TJunctionSwitching_createPatch/Allrun

...esh/createPatch/TJunctionSwitching_createPatch/README.txt

...Switching_createPatch/bottom/constant/transportProperties

...witching_createPatch/bottom/constant/turbulenceProperties

...JunctionSwitching_createPatch/bottom/system/blockMeshDict

.../TJunctionSwitching_createPatch/bottom/system/controlDict

...ch/TJunctionSwitching_createPatch/bottom/system/fvSchemes

...h/TJunctionSwitching_createPatch/bottom/system/fvSolution

...witching_createPatch/central/constant/transportProperties

...itching_createPatch/central/constant/turbulenceProperties

...unctionSwitching_createPatch/central/system/blockMeshDict

...TJunctionSwitching_createPatch/central/system/controlDict

...tionSwitching_createPatch/central/system/decomposeParDict

...h/TJunctionSwitching_createPatch/central/system/fvSchemes

.../TJunctionSwitching_createPatch/central/system/fvSolution

...unctionSwitching_createPatch/constant/transportProperties

...nctionSwitching_createPatch/constant/turbulenceProperties

...nSwitching_createPatch/inlet/constant/transportProperties

...Switching_createPatch/inlet/constant/turbulenceProperties