Terminalfont: add iTerm2 support ( macOS )

src/data/config_user.txt

@@ -320,3 +320,4 @@
 #--lib-glx /usr/lib/libGLX.so
 #--lib-osmesa /usr/lib/libOSMesa.so
 #--lib-opencl /usr/lib/libOpenCL.so
+#--lib-plist /usr/local/bin/libplist-2.0.dylib

src/data/help.txt

@@ -84,6 +84,7 @@ Library options: Set the path of a library to load
     --lib-glx <path>
     --lib-osmesa <path>
     --lib-opencl <path>
+    --lib-plist <path>
 
 Module specific options:
     --title-fqdn <?value>:        sets if the title should use fully qualified domain name. Default is false.