Adding Software Engineering Fundamentals Comp 1531 2025 (#485)

* Update course link for CS2 Data Structures and Algorithms 2025 by Sim Mautner youtube vedio playlist

* Add COMP1511 (UNSW) full course resources including lectures, labs, assignments, and video playlist

* Add COMP6991 (2022) Rust Programming (UNSW) course link and YouTube lecture playlist

* Add COMP -1531 Software Engineering Fundamentals (2025) with lecture playlist