Also fix a few bugs and other weirdness in Platform::DirectorySearch. Empty string paths would crash and filenames with 4 or fewer characters wouldn't register.
This fixes bugs like "type\0hello mom" being a property name sim.partProperty accepts and half-fixes bugs like text formatting codes making gfx.drawText exit prematurely.
Currently it detects presence of v incorrectly (via if (ID(type))) and thus rewrites v = 0 to v = -1, even if 0 is actually what you want. Especially problematic if you're trying to spawn GOL (so LIFE(ctype=0)).
If the built-in update function is allowed to run, it can change the particle's type. The code path assumes that there is a Lua update function to call on the particle, but this type change may break this assumption and cause the code to call the update function of an element that doesn't even have one, producing a weird error message with no line number.
Also clear SaveRenderer graphics cache along with the main Renderer's when needed, and revert to built-in element callbacks rather than nothing at all when assigning nil to a callback slot in Lua.
Very similar in nature to the problem fixed by 0fcad65d. Again, it'd be massive help if we didn't destroy the Lua state explicitly in LSI's dtor. But this is not worth refactoring LSI for.
All these smart pointers have to be cleared before the Lua state is closed. Ordinarily, we'd have a smart pointer to the Lua state defined earlier in LSI than these smart pointers, which would take care of destruction in the correct order, but tfw technical debt.
Also add GameSave::PressureInTmp3 to check for elements with pressure memory and fix TUNG not sampling pressure on creation. This does not in itself fix#822 because tmp3 and tmp4 are still saved in 16 bits each, so full ctypes still don't fit in tmp3.
Becuase *of course* whether it succeds or not depends on whether you've rebuilt menus.
With all seriousness, the real culprit here is GameModel::GetToolFromIdentifier, which looks for tools in the menu section tool lists, plus another list with tools that aren't in any menu section. This is absolutely blaphemous, but I don't feel like refactoring this right now. It also wouldn't be a problem in itself, but allocating an element also doesn't rebuild these lists, only changing the MenuSection property and a few other obscure operations do. This makes allocating elements also rebuild these lists.
Allows finer control over whether you want none included or not.
Fixes some invalid things being allowed for element 0 in legacy lua api
Fixes {ctype} signs showing 0 instead of NONE
Also fix a bug with Requests where any connection that took
longer to finish than 15 seconds would be killed. Should have
used CURLOPT_CONNECTTIMEOUT instead of CURLOPT_TIMEOUT when
specifying the timeout, oops.
