[Feature request] Wildcard use in adminip.txt

I was also feeling a bit troubled that there's no chance for using a separate port dedicated for administration. References: https://github.com/SoftEtherVPN/SoftEtherVPN/issues/460, https://github.com/SoftEtherVPN/SoftEtherVPN/issues/467

However, I was coming across the usage of adminip.txt as outlined here: Restricting by IP Address of Remote Administration Connection Source IPs.

While a wildcard (*) is accepted to allow all IPs for one or all HUBs I am not able to allow certain subnets. E.g. it would be very helpful to use 192.168.178.0, 192.168.178.*, 192.168.178 or similar to allow certain subnets. It would be a hassle to add all IPs of a subnet.