AutoSearch
==========
Autosearch allows user to search through the records by typing the text
from the keyboard. 

TDBGridPro.ParamsAutoSearch - contains autosearch parameters.
  Enabled - enables autosearch.

  SearchableFields - data fields that can be searched (otherwise all fields can be searched).

  ShortCut - key combination that activates searching (otherwise searching is activated
    after any alphanumeric key is pressed).

  WndColor - the color of the window that shows autosearch text.
