Increase arrays for items_inventory.xtbl and mp_character.xtbl

[Moneyl]

These xtbls are another set that use hardcoded fixed size arrays for storage. This is a problem since large mods exceed their vanilla sizes. Unfortunately, since they're fixed size arrays we can't just patch the spot where it gets allocated. Instead, every piece of code that uses them needs to be patched to use a larger size or completely replaced.

For these two it may be easier to fully replace the functions that use them, Especially for mp_character.xtbl since the array is stored in a struct, making patching the assembly more complicated.

[Moneyl]

Also try to look into increasing the limit for squad_loadout.xtbl