Add proper logging to match expectations from TakoTako

[vivaria]

TakoTako's ConvertTJA.exe utility checks for specific logging messages to make sure that no errors have occurred. But, if a general Python exception is thrown (e.g. NotImplementedError, ValueError) without the specific keywords, then TakoTako just... won't print the error message to the log at all? Which is very unhelpful when something goes wrong.

So, tja2fumen should probably attempt to mimic what tja2bin does, so that it can function as a drop-in replacement for tja2bin.