Clean up coded boundary conditions for OpenFOAM cases

[davidscn]

Follow-up to #428

Cleans-up the run/clean scripts as we use coded boundary conditions and initial conditions since #428, i.e., tools such as funkySetFields and groovyBC are not required anymore. Also removes the 0.orig, as it is not needed anymore. Applies some formatting to the coded boundary conditions itself and applies the (promised) boundary condition correction in the `heatTransfer´ solver before entering the time loop.

[MakisH]

I modified the .gitignore to add the generated dynamicCode directory (but I guess we don't want to clean it, as we don't clean the solver codes as well).

I ran the partitioned-heat-conduction case. I trust you have checked the turek-hron-fsi3 case.

[davidscn]

(but I guess we don't want to clean it, as we don't clean the solver codes as well)

changing the OpenFOAM version might lead to obscure errors, but we can still add something like this later on, if we find that it is important.