more PHPTs for multi-byte support

[mattficken]

most of these PHPTs are for the ANSI fallback behavior.

added some PHPTs for PHAR extension.

[weltling]

Thanks for the PR, Matt. I've checked and found several issues, all seem to be of the test bug nature

• several tests are missing data, ext/tidy/tests/005_charset-mb.phpt and some others
• some tests have data in wrong charset, fe same ext/tidy/tests/005_charset-mb.phpt has the hardcoded UTF-8 content but sets default_charset=cp1251. This will fail, the hardcoded content needs to be encoded as default_charset/internal_encoding tell
• the outputs in some tests don't match (probably c/p mistake), like ext\phar\tests\tar\tar_001-mb.phpt
• some codepages like 932 can show some incompatibilities with western codepages, so the tests involving them should be verified carefully on machines with cp 932 and some european like 1252, at least
• the function get_basename_with_cp() checks the files created by PHP using PS and expects codepage. In ext\standard\tests\file\windows_mb_path\bug54977_charset.phpt the default_charset is SJIS (thus the path returned by readdir as well), but get_base_name_with_cp() is passed 65001 instead of 932. But even passing it correct, it might be that on a non 932 cp PS would fails to accept cp 932, so a test like this might still need cp932 by default (or another ways to check).

Please check this points.

Thanks.