Allow containers with inventory type "with_custom_stack_size" to have filters

[SwozzleSticks]

Right now, inventories of the type "with_custom_stack_size" has the boolean with_bar option. Letting it also have "bar and filters" would give it feature parity with containers without a custom stack size (since with weight limit doesn't really make sense in this context).

[protocol_1903]

+1

[Rseding91]

A small note: there's nothing to "allow" currently - that inventory type simply does not exist in the engine. So this is more: "design, write tests for, and implement inventory with custom stack size and filters for modding use".