faceAreaWeightAMI more verbose error

Functionality to add/problem to solve

If the faceAreaWeightAMI class cannot find a target, it'll print the source face ID in the error which isn't that helpful.

Target audience

AMI users

Proposal

The current code in faceAreaWeightAMI.C at line 363

        FatalErrorInFunction
            << "Unable to set target face for source face " << srcFacei
            << abort(FatalError);

could be changed to:

        FatalErrorInFunction
            << "Unable to set target face for source face " << srcFacei
            << " with centre: " << srcPatch0().faceCentres()[srcFacei] << abort(FatalError);

And instead of an error for example: Unable to set target face for source face 84468

the user can find the problematic area immediately with the following tiny extra info: Unable to set target face for source face 84468 with centre: (0.138558 0.724811 1.9799)