GUACAMOLE-1760: Add client-side options for compression and quality levels.

guacamole-ext/src/main/resources/org/apache/guacamole/protocols/vnc.json

@@ -58,6 +58,16 @@
                     "type"    : "BOOLEAN",
                     "options" : [ "true" ]
                 },
+                {
+                    "name"    : "compress-level",
+                    "type"    : "ENUM",
+                    "options" : [ "", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" ]
+                },
+                {
+                    "name"    : "quality-level",
+                    "type"    : "ENUM",
+                    "options" : [ "", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" ]
+                },
                 {
                     "name" : "encodings",
                     "type" : "TEXT"