Changes to test interrupt injection in KVM VCPUs

The PIC Model in KVM Kernel is not Accepting End-of-Interrupt from Guest Software for some unknown reasons
Interrupt Injection is Working with PIC Model in KVM Kernel and Software Application

Previous observation was wrong; as a previous interrupt (int 0x10) was causing pending interrupt messages; which is irrelevant to the interrupt injection mechanism
Machine specific annotation function (32 vs 64 bit)
Modified Print
Added a Configure Env. Variable for Specifying the APES toolchain version

The APES toolchain version must correspond to the installed version on host machine, otherwise llvm-gcc fails to annotate almost every source file