Added "8" as the default Order of polynomial thermodynamic functions

This will allow alternative methods of storing mixture information for e.g. complex transport modelling

Also remove the "<thermo" part of the names of thermodynamics packages

Conflicts:
	tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/0/p
	tutorials/lagrangian/porousExplicitSourceReactingParcelFoam/verticalChannel/system/changeDictionaryDict
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/H2O
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/T
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/U
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/air
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/alphat
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/k
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/mut
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/omega
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/0/p
	tutorials/lagrangian/reactingParcelFoam/verticalChannel/constant/polyMesh/boundary

Thermodynamics and sub-models:  Removed "Sp" boundedness corrections on transport, replaced with "bounded Gauss" scheme