Ref T199, improved copy dialog

* filter disabling or hiding can be toggled
* bootstrap file can be shown/hidden
* fixed naming typo "setCacheMode"

src/blackgui/components/copyconfigurationcomponent.ui

@@ -70,6 +70,13 @@
         </property>
        </widget>
       </item>
+      <item>
+       <widget class="QCheckBox" name="cb_ShowAll">
+        <property name="text">
+         <string>show all</string>
+        </property>
+       </widget>
+      </item>
       <item>
        <spacer name="hs_Mode">
         <property name="orientation">