[FIX] - hr_attendance_importer: Implemented copy method.

Implemented copy method to remove code from employee after creating copy to avoid code constraint errors.
[FIX] - hr_personnel_actions: Implemented copy method.

Implemented copy method to avoid duplication of personnel actions due to related ids.
Merge pull request #50 from CLEARCORP-dev/7.0_hr_personnel_actions

[FIX] - Fixed hr.employee copy methods.