Added inc and dec A in search manager for faster action.
Fix a bug with "Invert", now handle all data types correctly.
Add search for bookmark.
Fix some bugs with pointer navigation in memory explorer.
Currently bookmark menu may need an exit and re-entry for the cursor to appear. Search is limited to == only. The "Search Setup" button in bookmark menu only serves to set the type and value for the bookmark search. Maybe later I may add a full fledged search for bookmark, I suppose the normal use case is == anyway.