Fixes the tradeband scanner. (#4423)

# About the pull request
So it turns out I never gave the tradeband scanner the trait for
itself...
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# Explain why it's good for the game
# Testing Photographs and Procedure
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# Changelog
:cl:
fix: Fixes the CMB tradeband scanner not being able to do it's job.
/:cl:

code/game/objects/items/devices/scanners.dm

@@ -465,3 +465,4 @@ FORENSIC SCANNER
 	w_class = SIZE_SMALL
 	flags_atom = FPRINT
 	flags_equip_slot = SLOT_WAIST
+	inherent_traits = list(TRAIT_TOOL_TRADEBAND)