"Find files" and command line mode "i" commands

1. if "Use all tables" option or "t" modifer of "i" command are used, additionally to already supported ANSI, OEM and UTF-16 encodings WinRAR will search the specified string in UTF-8 files as well;
2. better support for Unicode text strings;
3. better performance, especially for case insensitive search; d) hexadecimal search output includes both text and hexadecimal representation of found matches.

Other changes:

• File and total progress bar is displayed when unpacking tar.bz2, tar.gz, tar.lz, tar.xz, tar.z archives. Previously only the total progress was displayed properly for tar.bz2, tar.gz and tar.z. Neither file nor total progress was displayed for tar.lz and tar.xz.
• "File list/Files/Exact sizes" option also changes the file size format in WinRAR status bar.
• Added support for one more variation of TAR format archives.

Bugs fixed:

• WinRAR extraction commands in Windows Explorer context menu failed if -ag switch was added to rar.ini file.