Convert LocalDateTime to/from TM

The MAXON API provides the developer with two practical global functions to convert maxon::LocalDateTime to ANSI tm struct and vice versa.

Provided functions are:

• maxon::ConvertLocalDateTimeToTM(): converts maxon::LocalDateTime to ANSI "tm" struct;
• maxon::ConvertTMToLocalDateTime(): converts ANSI "tm" struct to maxon::LocalDateTime.

From LocalDateTime to ANSI tm:

    // This example converts a LocalDateTime to a tm.

    const Int32 year  = 2016;
    const Int32 month = 7;
    const Int32 day  = 1;
    const Int32 hour = 9;
    const Int32 minute = 0;
    const Int32 second = 0;
    const maxon::LocalDateTime ldt = maxon::LocalDateTime::FromValues(year, month, day, hour, minute, second) iferr_return;
    const tm tmvalue = ConvertLocalDateTimeToTM(ldt);

From ANSI tm to maxon::LocalDateTime:

    // This example converts a tm object to a LocalDateTime object.

    tm tmvalue;
    tmvalue.tm_year = 2016;
    tmvalue.tm_mon  = 7;
    tmvalue.tm_mday = 1;
    tmvalue.tm_hour = 9;
    tmvalue.tm_min  = 0;
    tmvalue.tm_sec  = 0;

    const maxon::LocalDateTime ldt = ConvertTMToLocalDateTime(tmvalue);