Handle STB_LOCAL global variables

[elfmaster]

Currently we cannot patch global variables that are locally binded. This should only take an hour or so to handle.

int foo(void)
{
      static int data_var = 5;
      printf("%d\n", data_var);
}

[elfmaster]

STB_LOCAL patching now works, as long as there are not optimizations that use jmp's instead of calls to the static function. This ticket will remain open at 50% done.