non-docker mysql setup

[arterialplan]

This is for dw-v7 branch
This issue involves the file roles/setup/mysql/tasks/main.yml

The following tasks need to have the become: true option added (the .my.cnf file is only set up for root)

• Ensure anonymous users are not in the database
• Remove the test database
• Create mysql databases
• Setup MySQL users

The following tasks need to have the login_unix_socket: "{{ db_local_socket }}" option added

• Remove the test database
• Create mysql databases

The task "Update mysql root password for all other root accounts" still uses stroom_db_root_password, I believe this should be set to db_root_password