core: db squash 3.2 upgrade scripts

This patch squashes all 03_02_* upgrade scripts into the main database
    creation scripts.

1) Creating a git branch and removing all upgrade scripts except
   those with 03_02_*
2)  Creating a new 3_2 database based on 1)
3) Using pg_dump to export 3_2 schema & data
4) Replacing the create_tables.sql with the schema file generated on 3)
5) Editing manually insert_data.sql and insert_predefined_roles.sql
   to have all changes from data exported at step 3)
6) Creating a database engine_db_squash_3_2 on this patch branch
7) Creating a database engine_master on the master branch
8) Use pg_dump to export db from step 6) schema & data
9) Use pg_dump to export db from step 7) schema & data
10) Compare schema & data from steps 8) & 9)

Change-Id: I1ce390403c6133b66726089ff3b1e0c91ec4a2c8
Signed-off-by: Eli Mesika <emesika@redhat.com>