* Checking Linux kernel version when installing amneziawg-go
print the Linux kernel version to stdOut for subsequent checking by the server controller.
* Add error for old linux kernel
Add error 214 ServerLinuxKernelTooOld
* Add case for old linux kernel
Add case for error 214 ServerLinuxKernelTooOld
* Added kernel check for Awg2
Added Linux kernel version check and introduced corresponding ServerLinuxKernelTooOld error for Awg2.