Fix natural sort comparison for strings with large numbers
Fix natural sort comparison for strings with large numbers

Fix errors when comparing strings with large numbers (> INT64_MAX).
Comparisons now occur by comparing individual digits, instead of
converting to int64_t first.

(cherry picked from commit de46c92711f83b14a532702060d17b4269b9e1e9)

ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot,ex/godot