Savefile: Better size checks #2
Description
ATM it works fine for savefiles that only ever have the same number of Blocks/Bytes, but if I were to have an older version savefile thats 2 blocks and the new one is 4 blocks, but we only have 1 spare block, then saving is impossible (2 + 1 < 4).
Also PC has no size checks at all, it just always assumes there is space. See how easy this is to fix.