Add MediaTable

[FredericBlum]

Copying from #8:

• to add a MediaTable linking the lexical data to the audio files.

@xrotwang Quite lost on how we would proceed to implement this. Is this something you will take charge of?

[xrotwang]

See

doreco/cldfbench_doreco.py

Lines 221 to 241 in ac227b3

	for i, row in enumerate(self.iter_rows('*_metadata.csv'), start=1):
	if row['extended'] == 'yes':
	continue
	fid = 'doreco_{}'.format(global_id(row['Glottocode'], row["name"]))
	if fid in filemd[row['Glottocode']]:
	args.writer.objects["MediaTable"].append({
	"ID": fid,
	'Name': '{}.wav'.format(row['name']),
	"rec_date": row["rec_date"],
	"rec_date_assignment_certain": row["rec_date_c"],
	"genre": row["genre"],
	"genre_stim": row["genre_stim"],
	"gloss": row["gloss"],
	"transl": row["transl"].split('/'),
	"sound_quality": row["sound_quality"],
	"background_noise": row["background_noise"],
	"Glottocode": row["Glottocode"],
	"Corpus_ID": row["Glottocode"],
	"Download_URL": filemd[row['Glottocode']][fid][0],
	'Media_Type': 'audio/x-wav',
	})