adds UI support and fixes a reading issue

plugins/com.minres.scviewer.e4.application/src/com/minres/scviewer/e4/application/messages.properties

@@ -9,7 +9,7 @@ DesignBrowser_8=Insert before
 LoadingWaveformDb_0=Database loading...
 LoadStoreSettingsHandler_2=*.scview
 LoadStoreSettingsHandler_3=SCViewer.scview
-OpenHandler_0=*.vcd;*.vcd.gz;*.txlog;*.txlog.gz;*.txdb;*.fbrdb;*.ftr
+OpenHandler_0=*.vcd;*.vcd.gz;*.txlog;*.txlog.gz;*.txdb;*.fbrdb;*.ftr;*.fst
 QuitHandler_0=Confirmation
 QuitHandler_1=Do you want to exit?
 RelationTypeToolControl_0=------------