[Epic] Taxonomy Integration

[NuwanJ]

The main concept of this project is to implement a Taxonomy module. Taxonomies are used to easily manage hierarchical listings without designing dedicated UI pages.

Here are a few user cases:

Department intranet page

Data source: https://github.com/cepdnaclk/www.ce.pdn.ac.lk/blob/main/_data/intranet.json

Taxonomy: intranet

- students
  - a list of [name, link]  
- staff   
  - a list of [name, link]  

Students

Data source: https://github.com/cepdnaclk/people.ce.pdn.ac.lk/blob/main/_data/students.json

- UG students 
  - E20
  - E19
  - ...
- Alumni students 
 - E18
 - E17
 - ... 

Past heads of the department

Data source: https://github.com/cepdnaclk/people.ce.pdn.ac.lk/blob/main/_data/past_heads_of_dep.json