Window resize events are now sent from the renderer to lisp.
On the lisp side, some math code has been written, but not yet
integrated into the project.
The Vulkan bits are written in C. Then in common lisp you talk to the
renderer. On the common lisp side, the program was made to allow
interaction with the REPL while the game runs. Vertex buffers have not
been implemented yet, the Vulkan stuff is currently barebones.
