[Imports] Sardinia Regional Dataset Import Phase 2: Addresses

[Leonardo]

Hi,

after the successful import of the buildings in Sardinia (see 
https://lists.openstreetmap.org/pipermail/imports/2014-March/003061.html 
for the original proposal) now it's time to move to phase 2, addresses. 
Here is the wiki page proposal:

https://wiki.openstreetmap.org/wiki/Sardegna/Import/Address_import_for_Sardinia

We have already discussed the import details on the Italian and 
Sardinian ML and after, some small tweaks, we are ready to propose it 
here. I want to stress that NO mechanical import will be used and all 
the existent data will be checked and, eventually, merged with the 
imported one.

We will cover 57 city of Sardinia and we will use the address also to 
check the missing streets name against the imported data (if there are 
any controversy about names, we will keep the already present on OSM).

Many of the steps and tools used are similar to the workflow for the 
address import of Biella:

https://lists.openstreetmap.org/pipermail/imports/2014-November/003547.html

Feedback is welcome!

Thank you and Merry Christmas!

Leonardo