TINSEL: Hopefully fix DW2 on BE systems

This reverts the endianess changes in commit c90d563 which do not work
properly in DW2 on BE systems (as GetSceneStruc()'s behavior is
different in DW2)
COMMON: Fix order of languages.

These are sorted according to the alphabetical order of the description. Thus,
Croatian should be between Chinese (Taiwan) and Czech.
COMMON: Add Latvian language code.
WINTERMUTE: Add Reversion: The Escape 1.3.2369 release.

This release has different hashes and file sizes than the previous Reversion
1.3 entries but is marked as 1.3.2369 in the installer filename.
WINTERMUTE: Fix typo in Polish language filename in Reversion1.
WINTERMUTE: Skip Latvian language package if not selected.
TSAGE: R2R - Refactor Card class, add isIn() function