Add FreeBSD wcstoX implementations.

Change-Id: I2c0bfe5fbea6166ffbfa05337ff6061b937696a3
Make locale support compile

Change-Id: Idedf1eb8a6f35ede19c96eaee8b3f70d3b590982
Merge pull request #22 from awong-dev/locale_fixes

Locale fixes. Makes more string.conversions tests pass.