Before this commit, the `project_enterprise_tour` has a step to
check `allow_billable` field in project to make the new project
billable to get partner field visible. The problem is this step
cannot be achieved if `sale_project` module is not installed.
This commit moves `project_enterprise_tour` is project module
to easily override it in `sale_project` and `project_enterprise`
modules to be sure the tour works when `sale_project` is not installed
and also when that module is installed.
X-original-commit: f09245f4dae4c3503630c9cd92b9d9ab5bfb6e78
Part-of: odoo/odoo#129584
Xavier Bol (xbo)
83706f4d00