This commit contains a complete rewrite of find console utility. The goal of it was to make the source code easier to maintain and to add a missing feature (/offline switch). Additional changes: * now the program operates on Unicode strings; * added conutils and shlwapi as program's libraries; * added IDS_INVALID_SWITCH string into resources; * modified IDS_USAGE string to include /offline switch description. https://ss64.com/nt/find.html was used for reference.