Add several new variant needles for KDE (new background)

These all are caused by a new desktop background and bits of
KDE desktop chrome apparently becoming translucent.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/firefox/launcher-kde-20180604.json

@@ -0,0 +1,16 @@
+{
+  "properties": [],
+  "tags": [
+    "browser_launcher",
+    "firefox_launcher"
+  ],
+  "area": [
+    {
+      "height": 31,
+      "xpos": 46,
+      "ypos": 209,
+      "width": 31,
+      "type": "match"
+    }
+  ]
+}

needles/kde/desktop_clean-kde-larger-20180604.json

@@ -0,0 +1,16 @@
+{
+  "area": [
+    {
+      "ypos": 733,
+      "type": "match",
+      "width": 36,
+      "height": 35,
+      "xpos": 0
+    }
+  ],
+  "tags": [
+    "DESKTOP-kde",
+    "graphical_desktop_clean"
+  ],
+  "properties": []
+}

needles/kde/desktop_network_dismiss-kde-20180604.json

@@ -0,0 +1,16 @@
+{
+  "area": [
+    {
+      "xpos": 991,
+      "ypos": 434,
+      "width": 16,
+      "height": 16,
+      "type": "match"
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "DESKTOP-kde",
+    "desktop_notification_dismiss"
+  ]
+}

needles/kde/desktop_network_notification-kde-20180604.json

@@ -0,0 +1,16 @@
+{
+  "area": [
+    {
+      "type": "match",
+      "width": 142,
+      "ypos": 431,
+      "xpos": 641,
+      "height": 21
+    }
+  ],
+  "properties": [],
+  "tags": [
+    "DESKTOP-kde",
+    "desktop_network_notification"
+  ]
+}

needles/kde/desktop_no_notifications-kde-29-20180605.json

@@ -0,0 +1,16 @@
+{
+  "tags": [
+    "DESKTOP-kde",
+    "desktop_no_notifications"
+  ],
+  "properties": [],
+  "area": [
+    {
+      "width": 199,
+      "type": "match",
+      "ypos": 396,
+      "xpos": 633,
+      "height": 18
+    }
+  ]
+}