Allow to configure Edge userdata directory via Display data

With this contribution, a custom userdata directory can provided to Edge
browser via its Display for the separation of the usage of userdata
directory per application by the webview2Environment.

contributes to
#1013

Author: amartya4256

bundles/org.eclipse.swt/Eclipse SWT Browser/win32/org/eclipse/swt/browser/Edge.java

@@ -39,6 +39,7 @@ class Edge extends WebBrowser {
 	static final String SDK_TARGET_VERSION = "99.0.1150.38";
 
 	// Display.getData() keys
+	static final String EDGE_USER_DATA_FOLDER = "org.eclipse.swt.internal.win32.edgeUserDataFolder";
 	static final String APPLOCAL_DIR_KEY = "org.eclipse.swt.internal.win32.appLocalDir";
 	static final String EDGE_USE_DARK_PREFERED_COLOR_SCHEME = "org.eclipse.swt.internal.win32.Edge.useDarkPreferedColorScheme"; //$NON-NLS-1$
 
@@ -476,6 +477,9 @@ WebViewEnvironment createEnvironment() {
 	String dataDir = System.getProperty(DATA_DIR_PROP);
 	String browserArgs = System.getProperty(BROWSER_ARGS_PROP);
 	String language = System.getProperty(LANGUAGE_PROP);
+	if (dataDir == null) {
+		dataDir = (String) display.getData(EDGE_USER_DATA_FOLDER);
+	}
 	if (dataDir == null) {
 		// WebView2 will append "\\EBWebView"
 		dataDir = (String)display.getData(APPLOCAL_DIR_KEY);