chemistryModel: Added support for constructing reactions with access to the region database (objectRegistry)

Added new reaction rate fluxLimitedLangmuirHinshelwoodReactionRate which is a
variant of the standard LangmuirHinshelwoodReactionRate but with a surface flux
limiter dependent on the surface area per unit volume Av which can be supplied
either as a uniform value or a field name which is looked-up from the region
database (objectRegistry).

Description
    Langmuir-Hinshelwood reaction rate for gaseous reactions on surfaces
    including the optional flux limiter of Waletzko and Schmidt.

    References:
    \verbatim
        Hinshelwood, C.N. (1940).
        The Kinetics of Chemical Change.
        Oxford Clarendon Press

        Waletzko, N., & Schmidt, L. D. (1988).
        Modeling catalytic gauze reactors: HCN synthesis.
        AIChE journal, 34(7), 1146-1156.
    \endverbatim

tutorials/multiphase/reactingTwoPhaseEulerFoam/laminar/bubbleColumnEvaporating/system/controlDict

@@ -23,7 +23,7 @@ startTime       0;
 
 stopAt          endTime;
 
-endTime         100;
+endTime         0.01;
 
 deltaT          0.0025;