This a temporary PR to share code that addressed the following
Fix set_extra_info and get_extra_info to handle List of Symtabs
Add missing cases to global_modread
Fix Uop Bug in collect_global_read as shown in issue #33 by removing case: CODE.Uop#(,rhs=) and enumerate all Uop (by adding CODE.Uop#(.. "-"|"+"|"~",rhs).
This a temporary PR to share code that addressed the following