Compressed mib12 executive code and added interrupt handling ability
for application code.  mib12 executive is now ready to implement
autoregistration but that is not done yet.
Merged MIB specific code from pic12 shared library to mib executive
so that applications can link against the shared library with out
pulling in the MIB code.
Minor change.
Updated mib12_sdk and pic12_executive to reference the same version
of the MIB application description structure.  Added 2 bytes to the
struct to allow for each application to describe itself so that the
mib executive can properly autoregister for a bus address.