Fix supply drops and some other

Some fixes:

Fixes #7553: use the return value of `map::place_items` instead of the item count on the field to detect how many items have been created.

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Remove more tabs, similar to #8172.

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Fix toolset consumption (should be 1/10 of what the welder needs, also added the crude welder as alternative). 
Fix bug reported here: https://github.com/CleverRaven/Cataclysm-DDA/commit/bd01a39ca02e0a9b56cfdd9ab79c8594ff846b96