Started using attribute output

Reorganized current libIRDB into a library for the CORE functionality.  Hope is to add a second library for CFG building.

Cleanup code

Integer bug transform to monitor add/sub overflows

- out args region size
- use frame pointer
- IR DB-driven P1 transform (Katie's work)

- keeping track of out args region size
- keeping track of indirect branch targets

Better support for indirect branch targets in instructions

Added overflow detector for imul & mul

- adds overflow check to MUL and IMUL
- transforms uses the new () callback operator defined on SPASM & SPRI
- assumption: callback implemented in Strata via JMP, i.e., we are responsible for setting up context (arguments, return address)
- uses address starting at 0x0F000000 for the transform
- workaround oversight in spasm ( <address> -> <label> was not implemented )