QoL Improvement: add container functions to the CoreUnit API

[Wolfram]

Basically, add a new set of functions similar to what we have today when we have a container or fuel tank directly connected to our board:

• core.getContainerMaxVolumeById
• core.getContainerItemVolumeById
• core.getContainerItemMassById

The idea would allow, for example, getting the volume and mass of a container or fuel tank without having it connected, just by specifying its id, and could improve A LOT the usability and performance of flight and factory management scripts, since instead of having to resort to using math to figure out what each fuel tank or container has, based on its mass, we could just have the exact values from start, without having them linked directly (important for larger ships).