[IMP]hr_material,hr: improve view, add kanban state in maintenance_request. set module icon and change tital.

[IMP]hr_material: display the alias in the menu tip.

[IMP]hr_material: Converted res_config file in to new api and removed versioning string in xml file.

[IMP]hr_material: converted class name in to CamelCase

[IMP]hr_material: imporved the code.

[IMP]imporve code.
[IMP]hr_material: add sender in follower list.

[IMP]hr_material: improve access right.

[IMP]improve code.

[IMP]hr: remove unused groups.

[IMP]improve code.