Mousewheel camera zooming, more refactoring done

What's Changed

• Refactor Area NPC packet code by @downthecrop in #1
• Added a default window size to stop annoying bug from happening by @Ceikry in #4
• Find + Refactor Camera Zoom Var + Add Scrollwheel Zoom :) by @Ceikry in #5
• Tons of refactoring/reorganizing static classes (not in PRs)

New Contributors

• @downthecrop made their first contribution in #1
• @Ceikry made their first contribution in #4

Full Changelog: 1.0.0...1.0.1