getLocalIP: Added macOS support

OOequipment/subfiles/getLocalIP.m

@@ -9,7 +9,11 @@ function [ ipaddress ] = getLocalIP()
         ipaddress = regexp(result,'(?<=\n   IPv4 Address[ \.]*: )([0-9]{1,3}\.?){4}','match');
     elseif ismac
         % Code to run on Mac platform
-        
+        [status,result]=system('ifconfig');
+        if ~(status == 0)
+            error('Failed to find local IP address');
+        end
+        ipaddress = regexp(result,'(?<=\n	inet )([0-9]{1,3}\.?){4}','match');
     elseif isunix
         % Code to run on Unix platform
     else