[9.x] Artisan model:show command (#43156)

* Add model:show command

* Fix nullable status

* Support models in unconventional locations

Co-authored-by: Enzo Innocenzi <[email protected]>

* Formatting

* Linting

* Updates layout of `model:show`

* Removes upper case on relation

* Show appended status for virtual attributes

* Lower-case accessors and attributes

* Display type and cast

* Move relations to bottom

* Remove unused var

* Remove unused table component

* Linting

* Reintroduce column details

* Display increments

* Display default value in verbose mode

* Display unique

* Refactoring

Co-authored-by: Enzo Innocenzi <[email protected]>
Co-authored-by: Nuno Maduro <[email protected]>