Sprint 4 Release

What's Changed

• First attempt at snapshot by @BasilrockMU in #238
• Finished TabCompletion++ by @kuhaku4 in #239
• Screencapture3 by @BasilrockMU in #240
• somewhat working scroll by @kuhaku4 in #242
• The code has been altered so that now it only takes a snapshot of the… by @BasilrockMU in #243
• Fixed Snapshot by @kuhaku4 in #245
• Magic arrows initial setup by @jrlease-03 in #246
• Finished Scrollbar for now by @kuhaku4 in #247
• TEST PUSH OF JACOCO DONT ACCEPT YET. by @kuhaku4 in #249
• The first version of Export CLI as Image is complete. by @BasilrockMU in #251
• Update guiView.java by @jrlease-03 in #253
• ReadmeUpdate by @kuhaku4 in #252
• Testcoverage by @CullenIsntHere in #254
• Deleted uninvoked imports and did the snapshot timestamp by @BasilrockMU in #255
• Now everything we want is displayed. by @BasilrockMU in #256
• Made it so stuff can only start with letters, by @CullenIsntHere in #257
• Undo/Redo Fix for gui by @kuhaku4 in #258
• GUI Changes by @jrlease-03 in #259
• Magic arrows halfway by @jrlease-03 in #261
• removed list options from gui by @kuhaku4 in #262
• Finished Magic arrows by @jrlease-03 in #263
• Formatting by @kuhaku4 in #264
• dragging fix by @jrlease-03 in #265
• Sprint 4 Final by @kuhaku4 in #266
• god save us from undo redo by @kuhaku4 in #267
• Sprint 4 Release by @willkill07 in #268

Full Changelog: v3.0.0...v4.0.0