Added application-controller pattern (#346)

[dctrue2]

• Added application-controller design pattern ( #346).
• The application-controller pattern centralizes action and view management.

[dctrue2]

@iluwatar, would you be able to take a quick review of this request in the next couple days, along with the others pending from my team?

We are working on these as part of a group project that is concluding next week, so it will be extremely difficult, if not impossible, for all of us to be able to get back together to make future adjustments. Our other requests, in addition to this one are: #1912 #1914 #1915

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
4 Code Smells

92.9% Coverage
0.0% Duplication

[iluwatar]

I'm sorry, but the issue was assigned to someone else. It would be unfair to step on his toes since he works according to https://github.com/iluwatar/java-design-patterns/wiki/01.-How-to-contribute. I'll ask if he is still working on the issue. If not, we can assign it to you and continue reviewing this pull request.

[ghost]

I'm sorry, but the issue was assigned to someone else. It would be unfair to step on his toes since he works according to https://github.com/iluwatar/java-design-patterns/wiki/01.-How-to-contribute. I'll ask if he is still working on the issue. If not, we can assign it to you and continue reviewing this pull request.

Hi @iluwatar, just in case you missed my message posted in the issue page. @dctrue2 and I are working as a team so please feel free to reassign the issue to him and review the PR.