Extends and reworks how various extended information text (desc_info,
desc_build, desc_upgrades) are handled to make object interactions and
mechanics A.) much more clearly documented in-game and B.) much easier
to support from the back-end.
Almost certainly a candidate for test merge.
Assembly/Disassembly instructions are noticeably sporadic, largely due
to our current lack of a unified framework. That's a future thing I'd
like to attack so that it can be handled programmatically, but for now I
only targeted the biggest culprits as I came across them.
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Signed-off-by: Batrachophreno <Batrochophreno@gmail.com>
Refactored hitby to be in line with TG's version.
Refactored item weight defines to a more clear naming scheme, also in
line with TG's version.
Refactored how the movement bumps are handled, ported signals to handle
them, in preparation for the movement update.
Fixed disposal hit bouncing the hitting atom on the wall.
Items do not push other items anymore if they are tiny.
