Hosted TODO list

• Fix the hosted interfacing (see the related Project page), so that host functions are not called using the AROS userland context's stack.

Kernel/Exec changes -:

• Separate code compiled for the "host" side, from code compiled for the "AROS" side, so that they do not touch headers or structures defined on the other side. Provide suitable API for passing the necessary information between each part and combine the binaries at link time. The current behaviour presents many challenges in maintaining the balance when compiling code that touches both host and AROS headers.