Better stack values dependencies tracking

[theihor]

Stack slots may be accessed indirectly. For example:

r2 = *(u64 *)(r10 -16) ;; r2 = fp-16
r3 = *(u64 *)(r2 -16) ;; r3 = fp-16-16 = fp-32

However currently the app treats memory accesses through any register except r10 as non-stack access.
This makes it blind to data dependencies through stack slots accessed in this way.

Implement evaluation of the pointer arithmetic in case a register value is known to refer to a stack slot.
Then, use this information when computing dependencies for visualization.