feature: download tsv data from each inventoried resource

[andreswebs]

Added functions to export the data to a .tsv file and create a download link at the bottom of each resource.

[kesor]

Than you very much @andreswebs!

Although if I understand correctly the request in #19 was asking to export the entire inventory into TSV/CVS.

... it'll be really useful since we would need to send it in excel files to the team doing audit or any higher up who request data of entire inventory

At the moment you made it possible to export each table individually. Which is great! But someone who really wants to move everything to Excel will have a lot of link clicking and file combining in front of them.

Do you think it is also possible to add another button that exports each region, and a button that exports the whole shebang with all the regions and everything?

Another small ask from me, could you make the link a <button class="btn btn-primary btn-sm"> so that it is more apparent it can be clicked and its more visible?