allow overset HOLE cells to be marked to arbitrary shape of fringe, but Cd curve is rougher

Functionality to add/problem to solve

This implemtation is inspire by louis, who put the HOLE cells further by n layers (n is set by user). However, this is subjected to only the shape of the wall patches. As a better way utilizing the overset features, HOLE cells should be near to the fringe.

Target audience

To who wants HOLE cells to be perfectly matched the fringe like me.

Proposal

The code is uploaded to my github. Just downald it and test!

What does success look like, and how can we measure that?

The original results of v2006 marking HOLE cells is like:

In my implementation, the HOLE cells could be marked to arbitrary shape of fringe:

ciecle:

rectangle：

Problems at present

When I test it with a cylinder case, the force coefficient result is very rough:

The same phenomenon occours applying louis's pushFront. However, applying the original version of inverseDistance, the Cd curve is also rough but finer:

I don't know why. Any ideas?