Hardcoded interface versions

The version of ISERVERPLUGINCALLBACKS is hardcoded to 003 in wormhole currently, where it should support any version for compatibility. SST does this to a point, but only for the last digit!!!! Also worth considering is the ISERVERPLUGINHELPERS001 interface, and the nature of the ClientFullyConnect vtable entry.

wormhole/src/main.zig

Lines 147 to 150 in 8da8708

    
           if (!std.mem.eql(u8, std.mem.span(name), "ISERVERPLUGINCALLBACKS003")) { 
        
               if (ret) |r| r.* = 0; 
        
               return &callbacks; 
        
           }

https://github.com/mikesmiffy128/sst/blob/13ad0442a3fde0518ca9133b55796f31652698c9/src/sst.c#L438-L444

	if (!std.mem.eql(u8, std.mem.span(name), "ISERVERPLUGINCALLBACKS003")) {
	if (ret) \|r\| r.* = 0;
	return &callbacks;
	}