Implemented hand filtering properly using deck land ratio

Made hand filtering optional and disabled by default

forge-gui-mobile/src/forge/screens/settings/SettingsPage.java

@@ -117,6 +117,10 @@ public class SettingsPage extends TabPage<SettingsScreen> {
                         "Performance Mode",
                         "Disables additional static abilities checks to speed up the game engine. (Warning: breaks some 'as if had flash' scenarios when casting cards owned by opponents)."),
                 1);
+        lstSettings.addItem(new BooleanSetting(FPref.FILTERED_HANDS,
+                        "Filtered Hands",
+                        "Generates two starting hands and keeps the one with the closest to average land count for the deck. (Requires restart)"),
+                1);
         lstSettings.addItem(new BooleanSetting(FPref.UI_CLONE_MODE_SOURCE,
                 "Clones Use Original Card Art",
                 "When enabled clones will use their original art instead of the cloned card's art."),