Set InnoDB engine for all existing tables

Added the method in heal script that checks if mysql_engine
parameter is needed to be changed and if it is neseccary do this.
Also this change adds migation that set 'mysql_engine' to InnoDB
for all tables that were added into the database after healing.

Closes-bug: #1346966

Change-Id: Ia4d9038b99b2559d37272a17f5819a9dedd53f72
Merge "Set InnoDB engine for all existing tables"