Util: Add test case for Env::ecl()
Util: Migrate func/escape_color.php

To: Util\EscapeColor
Util: Re-order numeric key of ArrayUtil::sortByLevel2() result
Util: Migrate func/filesystem.php

To: Util\FileSystem
Util: Migrate func/formatbytesize.php

To: Util\NumberUtil
Util: Migrate func/regex_match.php

To: Fwlib\Util\StringUtil::matchRegex()
Util: Migrate func/request.php

To: Util\HttpUtil
Util: Migrate func/validate.php

To: Util\Validator
Util: Migrate func/uuid.php

To: Util\Uuid
New class Algorithm\Iso7064
Algorithm: Add ISO 7064 Mod 17,16
Algorithm: Add method encodeModN() for better code reuse
Algorithm: Add ISO 7064 Mod 11-2
Mis: Change to use Algorithm\Iso7064 Mod 11-2
Util: Add check digit(by ISO 7064 Mod 17,16) to Uuid