BLayout implementation (BALMLayout) using the Auckland Layout Model
(ALM). The original ALM was implemented by Christof Lutteroth, the
Haiku/C++ version by James Kim.
The code needs some review, but the test programs seem to work fine.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23889 a95241bf-73f2-0310-859d-f6bbb57e9c96
