Improve survey points

[tudorbarascu]

• added the fk_object_reference column
• created geometry index
• added a default sequence on id
• added en + ro translation of chevillère (I guess it's this.. right? https://en.wikipedia.org/wiki/Tape_measure#The_measuring_tapes)
• added Total Station as a type of survey points ( I guess you are also using Total Stations, right? )

I haven't created the delta file etc. yet as the automated system is not working currently and there are the others pull requests that may be merged or not. I will do it as soon as everything is clear.

Also, the COMMENT ON TABLE qwat_od.surveypoint IS 'Table for sampling points. Inherits from surveypoint.'; is obsolete, right?

[tudorbarascu]

@lbartoletti Should be done now! Also with ruban métrique Thanks for reviewing.

I removed the commit with the default sequence for now as I don't know how valuable that is + the delta got me cornered a little bit and I think it calls for another pull if needed. What do you think about adding a default squence on qwat_od.surveypoint (id)?

[haubourg]

What do you think about adding a default squence on qwat_od.surveypoint (id)?

Yes, let's do that in another PR.