firstSolid() function to find the first solid between 2 points

[moOsama76]

function to find the first solid between start and end space points, with an optimized divide and conquer approach

[moOsama76]

Can someone help? I don't know what the AppVeyor test is about

[adam-urbanczyk]

Let's start with why the PR? With the latest extensions (i.e. .filter()) to the API, you don't need to touch the codebase. If you want to share, you could also open a PR in the contrib repo.

[moOsama76]

I checked filter() and I think the difference is that I return the exact point where there is a solid I don't return a workplane

[adam-urbanczyk]

Then invoke or a free function...