Error messages for --limit-storage etc should use appropriate byte units

[brson]

The error messages for --storage-size-limit print information about the low/high/multiples allowed for the argument. These are printed in bytes (but not labeled as bytes). These arguments accept a variety of units, eg "1024", "1KB" ,"1MB", and it is usually best to provide the argument in such units, not bytes.

Example:

$ ./tigerbeetle start --addresses=3000 --limit-storage=0 0_0.tigerbeetle
error: --storage-size-limit: size 0 is below minimum: 1108344832

These messages should print their numbers in a more readable unit, probably MB. The --cache-grid argument already does so.

This may soon be true for --memory-lsm-manifest as well cc #1447