Add Staff Department choices in User Model

[divyanshkhetan]

Is your proposal related to a problem?

The Department section in user model is left as a text field.

Describe the solution you'd like

Add various departments to which the staff can belong as a choice field. PS - I am referring to departments within the gymkhana to which staff belongs and not the academic departments.

[PranshuNayak]

As seen on the gymkhana website only faculties and students are position holders. If you can elaborate what positions you are talking about ?

[Samy-33]

As seen on the gymkhana website only faculties and students are position holders. If you can elaborate what positions you are talking about ?

This issue is about:

gymkhana/api/api/accounts/models.py

Lines 101 to 102 in accc96e

	# TODO(#83): add choices in department to which staff belongs to
	department = models.CharField(max_length=100)

A staff member could be a part of administration, computer-center, mechanical lab, accounts, library etc. Find out all the departments for staff members and add them in choices for Staff.department.