kde-plasma: Add missing patches

Signed-off-by: Andreas Sturmlechner <[email protected]>

kde-plasma/kwin/files/kwin-5.15.80-gstreamer-optional.patch

@@ -0,0 +1,13 @@
+Disable the effect video button if gstreamer is missing.
+
+--- a/kcmkwin/kwineffects/package/contents/ui/Effect.qml	2019-03-22 23:06:45.172699544 +0100
++++ b/kcmkwin/kwineffects/package/contents/ui/Effect.qml	2019-03-22 23:07:30.435043637 +0100
+@@ -111,7 +111,7 @@
+
+         QtControls.Button {
+             icon.name: "video"
+-            visible: model.VideoRole.toString() !== ""
++            visible: false
+
+             onClicked: videoItem.showHide()
+         }

kde-plasma/libksysguard/files/libksysguard-5.16.0-no-detailed-mem-message.patch

@@ -0,0 +1,26 @@
+From 49c5fdcc3bfdfedfaeaabac4f0070b986a166ce2 Mon Sep 17 00:00:00 2001
+From: Andreas Sturmlechner <[email protected]>
+Date: Fri, 7 Jun 2019 22:58:55 +0200
+Subject: [PATCH] Gentooify message about QtWebEngineWidgets
+
+Translations can not be provided for this.
+---
+ processui/scripting.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/processui/scripting.cpp b/processui/scripting.cpp
+index 83cf895..647194a 100644
+--- a/processui/scripting.cpp
++++ b/processui/scripting.cpp
+@@ -242,7 +242,7 @@ new QWebChannel(window.qt.webChannelTransport, function(channel) {
+     mScriptingHtmlDialog->webView()->load(fileName);
+ #else
+     QMessageBox::critical(this, i18n("QtWebEngineWidgets not available"),
+-            i18n("KSysGuard library was compiled without QtWebEngineWidgets, please contact your distribution."));
++            QStringLiteral("kde-plasma/libksysguard was built without USE \"webengine\" by user choice, detailed memory information not available."));
+ #endif
+ }
+ #if HAVE_QTWEBENGINEWIDGETS
+-- 
+2.21.0
+