consider reordering the columns of the deployment table

Hi @bartk, having a closer look at the table created by movebank_download_deployment I realised that it is a bit unfortunate that the columns "tag_id", "individual_id" are the first in the table, as these are the least used by anyone. I know that they are there as a by product of merging the different tables.

Maybe we could consider putting these at the end of the table, and starting the table with "individual_local_identifier", "tag_local_identifier", "deployment_id". Of course everybody can rearrange the columns.... anyway, just a thought.