Reset script with memory check

[SOSkr]

I modified a script that I found to use with docker and discord.

Check that the missing memory is greater than the parameterized one, if not restart the server.
Also restart the server if it has been running for more than 4 hours.

Original: https://github.com/FFFFourwood/palworld-server-scirpt
My modification: https://github.com/SOSkr/palworld-reset-scirpt