Make solution indexing on-demand / optional #2
Description
Build solution index only once at first start of the plugin, or when new solution was loaded. Allow the user to re-index the solution manually by providing a "refresh" button. Ideally re-index automatically when a change is detected to the solution (file added, removed or renamed).
Motivation: Currently, everytime the quick open window is popped open, it first crawls through the whole solution (builds an index) and then performs the search. This indexing is time consuming, especially with big solutions. It hinders the user experience, when the user is forced to wait for the indexing to finish each time, he uses the tool.