Rework base id from resource id calculation, use new constant

Correct first constant to subtract for FIFA 15 is 0x70000000 (1879048192)

Before:

 baseId(1879068993, True) -> (20801, 31)
 baseId(1929400641, True) -> (20801, 34)

After:

 baseId(1879068993, True) -> (20801, 1)
 baseId(1929400641, True) -> (20801, 2)