As described on this blog post, Ignore column order
is now an option in SSDT version 17.0, which is compatible with Visual Studio 2015.
If you’ve ever had to deal with accidental data
motion when putting a column in the middle of a table definition,
you’ll know how hard this can be to spot and manage. In this release
you can now check the “Ignore Column Order” option in the Advanced
Publish Options. This will append new columns to the end of an
existing table rather than altering the table structure to add the
column in its listed position.
You can find the setting by going into the Advanced...
button section of your publish profile, as well as in the Advanced...
button section of the database project properties' Debug
tab.
You can also achieve the same effect by adding the following element to your publish.xml file:
<IgnoreColumnOrder>True</IgnoreColumnOrder>
Unfortunately I do not know of a way to have this work in Visual Studio 2013, but hopefully you have upgraded to a newer version of Visual Studio by now :)