Initialization flag add

Added code to update initialization flag at the end of the init routine.

Author: chuckyvt

src/stdlib_hashmap_chaining.f90

@@ -505,6 +505,8 @@ module subroutine init_chaining_map( map,        &
 
         call extend_map_entry_pool(map)
 
+        map % initialized = .true.
+        
         if (present(status) ) status = success
 
     end subroutine init_chaining_map

src/stdlib_hashmap_open.f90

@@ -494,6 +494,8 @@ module subroutine init_open_map( map,         &
         end do
 
         call extend_map_entry_pool(map % cache)
+        
+        map % initialized = .true.
 
         if (present(status) ) status = success