TerminalFont: support Windows Terminal detection

src/data/config_user.txt

@@ -324,3 +324,4 @@
 #--lib-osmesa /usr/lib/libOSMesa.so
 #--lib-opencl /usr/lib/libOpenCL.so
 #--lib-plist /usr/local/bin/libplist-2.0.dylib
+#--lib-cjson /usr/lib/libcjson.so

src/data/help.txt

@@ -85,6 +85,7 @@ Library options: Set the path of a library to load
     --lib-osmesa <path>
     --lib-opencl <path>
     --lib-plist <path>
+    --lib-cjson <path>
 
 Module specific options:
     --title-fqdn <?value>:        Sets if the title should use fully qualified domain name. Default is false.