[FW][ADD] fleet: create new vehicles

[fw-bot]

Adding a new document and section to HR. No fleet documentation currently exists.

Forward-Port-Of: #5759

[robodoo]

Pull request status dashboard.

[fw-bot]

@larm-odoo @StraubCreative cherrypicking of pull request #5759 failed.

stdout:

Auto-merging content/applications/hr/employees/new_employee.rst
CONFLICT (content): Merge conflict in content/applications/hr/employees/new_employee.rst

stderr:

01:47:13.320671 git.c:463               trace: built-in: git cherry-pick de5d3825c6fdf14b56691d5c8be79f7528d60be7
error: could not apply de5d3825c... [ADD] fleet: add a new vehicle
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
----------
status:

Either perform the forward-port manually (and push to this branch, proceeding as usual) or close this PR (maybe?).

In the former case, you may want to edit this PR message as well.

More info at https://github.com/odoo/odoo/wiki/Mergebot#forward-port

[samueljlieber]

Fixed conflict in new_employee.rst in f54a617

[StraubCreative]

@robodoo r+