Add support for the Atlas skill tree

[dekelpilli]

Would be very nice to have the atlas skill tree available here, including integration with the tree generator, assuming it's sufficiently similar that the existing features can be used for it

[noraj]

It would be nice because PathOfBuilding won't PathOfBuildingCommunity/PathOfBuilding#4033

[EmmittJ]

I have made a few commits, so the atlas skill tree loads (and you can use the tree generator), but there are a few issues that I haven't had time to work through. For example, the mouse and the skill tree are offset do to the tree being bottomed out at 0,0 instead of centered on 0,0.

[EmmittJ]

The latest release 3.0.4 adds some basic support for the atlas tree. For now, you will have to manually swap jsons, but you can at least use most of the apps features (like the generator).

[therber2]

I second this: specifically, the function where you check mark a few nodes and name a starting point and the program runs all combinations to find most efficient path would be excellent to use on new atlas tree!
Would it be that hard really? Couldn't you just use the same code and replace the regular skill tree with the atlas tree?