RGB/Greyscale Image Mini-Lab improvements

[ncrxue]

• [ ] Change lii ArrayList, maybe put list into model and simplify control
• [ ] Make objects

[ncrxue]

Needed to add Lombok dependency to the pom file to use Getter https://github.com/D1935827V/spring_portfolio/blob/master/pom.xml#L85

[dylanroman]

Grading: Individual: 2.75/3

• I like the organization of your notes
• No video, but your contribution and requirements are completed (seen from in person review)