Terminal application view framework

[jvalkeal]

Epic issue collecting planned work.

Generic discussion in github discussions thread https://github.com/spring-projects/spring-shell/discussions/760

• [x] #800
• [x] #813
• [ ] #823
• [ ] #824
• [x] #825
• [x] #826
• [ ] #827
• [x] #832
• [x] #845
• [ ] #847
• [ ] #850
• [x] #854
• [x] #855
• [x] #995
• [ ] #1005
• [x] #1041
• [x] #1044
• [x] #1045
• [x] Initial Documentation

[jvalkeal]

Just a note about a0bdbfc033b70b2617de977d7f69d4a1cf1ed8ba as it didn't get mentioned in a commit. Further work happens in a mentioned issue.