Added -ow option which allows for automatic overwriting

src/main.f90

@@ -37,11 +37,23 @@ program main
     !Call initialization functions
     call lattice_init
     call box_init
+    force_overwrite=.false.
+
     end_mode_arg = 0
     
     ! Command line parsing
     arg_num = command_argument_count()
 
+    !Check to see if overwrite flag is passed
+    do i = 1, arg_num
+        call get_command_argument(i,argument)
+        select case(trim(adjustl(argument)))
+
+        case('-ow')
+            force_overwrite = .true.
+            print *, "Overwrite flag passed, output files will be overwritten"
+        end select 
+    end do 
     !Determine if a mode is being used and what it is. The first argument has to be the mode
     !if a mode is being used
     call get_command_argument(1, argument)