update org structure in core.org
add setup.org & refactor org structure in index.org, bugfix lein coords
add PRotate & PHeading impl for Vec3, add `heading` as alias for `heading-xy` to protocol, bugfix arc-length*
add tessellate & transform impls for AABB
add transform impls for Circle, update tessellate
add circumference template to LOB
refactor Quad3 to use LOB templates
remove unused `holes` field from Polygon type, refactor Polygon to use LOB templates, update all Polygon ctor references, replace org file configs with #+SETUPFILE headers
move dottest.org into /dev folder
rename geom.core/div into /, rename Quaternion into Quat4 update references
refactor all possible core math ops as macromath expressions