Search should also do text searches

[vchelaru]

Currently it is possible to search for items by name:

It's common to look for UI based on the text on that UI. For example, searching for a button that says "Save".

This may be slower because it requires searching all variables to see if the Save text is assigned. Therefore, we should have some kind of additional option so that it doesn't happen on all searches. Perhaps an "Include text" or something?

Alternatively, we could have a Find menu item... Need to think about this...

[vchelaru]

Closed by #177