LamineCisse/BEP032-examples: channel_type added in channel.tsv (BEP standard) add PowerLineFrequency in ephys-json for ephys_nwb_petersen file add PowerLineFrequency and PowerLineFrequencyUnit in ephys-json for ephys_nix file @ 4b080f7fd605fb49f849a372e25a9fa6dfc3dbe0

Lamine Cisse f4a4c5d198 PowerLineFrequency		2 éve
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sub-MS22_ses-PeterMS22180625162932concat_channels.tsv	42b8f69af8 gin commit from samuel-pc	3 éve
sub-MS22_ses-PeterMS22180625162932concat_contacts.tsv	7341a55b83 gin commit from Saksham	3 éve
sub-MS22_ses-PeterMS22180625162932concat_ephys.json	f4a4c5d198 PowerLineFrequency	2 éve
sub-MS22_ses-PeterMS22180625162932concat_ephys.nwb	035f8eb0d4 gin commit from nit-ope-de04	3 éve
sub-MS22_ses-PeterMS22180625162932concat_probes.tsv	42b8f69af8 gin commit from samuel-pc	3 éve