replaced module charsetConversions by module types_string and move it to libwolframe. Enable string conversions also without WITH_TEXTWOLF with restrictions to character pages supported (Ascii only for UTF-8 plus page 2 (Latin-1) for UTF16BE (wchar_t). fixed module dateTime and added a test stub (not implemented yet). Added module bigNumber for transport of arbitrary precision BCD numbers (no arithmetics) and added a test stub for it.
...