[IMP] hr modules: needaction, subtypes and department-based improvements.

This commit prepares some cleaning in various hr-related modules that are
about to land in master. There are mainly improvements on subtypes. The
subtypes are now linked to department subtypes, allowing to follow some records
based on the department (like project/task/issue).
[ADD]Hr material:added new module hr_material.

[ADD]added module_hr_material field in hr/res_config for one click installation from setting configuration.

[IMP]hr_material:improved typo,search view and added access right for hr manager of material stages.

[REMOVE]hr_material:removed license stuff.