Add demo test variant

We're piggybacking on our existing integration test framework to record  demos that we can include in our docs

pkg/integration/components/view_driver.go

@@ -393,14 +393,24 @@ func (self *ViewDriver) Press(keyStr string) *ViewDriver {
 	return self
 }
 
+// for use when typing or navigating, because in demos we want that to happen
+// faster
+func (self *ViewDriver) PressFast(keyStr string) *ViewDriver {
+	self.IsFocused()
+
+	self.t.pressFast(keyStr)
+
+	return self
+}
+
 // i.e. pressing down arrow
 func (self *ViewDriver) SelectNextItem() *ViewDriver {
-	return self.Press(self.t.keys.Universal.NextItem)
+	return self.PressFast(self.t.keys.Universal.NextItem)
 }
 
 // i.e. pressing up arrow
 func (self *ViewDriver) SelectPreviousItem() *ViewDriver {
-	return self.Press(self.t.keys.Universal.PrevItem)
+	return self.PressFast(self.t.keys.Universal.PrevItem)
 }
 
 // i.e. pressing space
@@ -549,6 +559,24 @@ func (self *ViewDriver) FilterOrSearch(text string) *ViewDriver {
 	return self
 }
 
+func (self *ViewDriver) SetCaption(caption string) *ViewDriver {
+	self.t.gui.SetCaption(caption)
+
+	return self
+}
+
+func (self *ViewDriver) SetCaptionPrefix(prefix string) *ViewDriver {
+	self.t.gui.SetCaptionPrefix(prefix)
+
+	return self
+}
+
+func (self *ViewDriver) Wait(milliseconds int) *ViewDriver {
+	self.t.Wait(milliseconds)
+
+	return self
+}
+
 // for when you want to make some assertion unrelated to the current view
 // without breaking the method chain
 func (self *ViewDriver) Tap(f func()) *ViewDriver {