Atlas thunk bx elf pic detection

...d on ebx).  this delta simply identifies the "getEbx" function, identifies the base that ebx should point to generically, and sets that in workspace metadata variable "PIE_ebx".  each time a 32-bit PIE binary wants to access relative offset data, it calls this "getEbx" function, which returns 
plz make all print use follow the "print as function" convention so we can start digging ourselves out of the "python 3 incompatibility hole" :)