Integrate an automated spell checking command using cspell

[joshsedl]

https://cspell.org/

[joshsedl]

Also activate https://marketplace.visualstudio.com/items?itemName=streetsidesoftware.code-spell-checker which uses cspell internally

[joshsedl]

CSpell is used for Drupal core issues, which would be another reason to have this as both a linter and a custom ddrv command

[JPustkuchen]

Just came across the same! :) Good point! Do it :)

[joshsedl]

Done through https://github.com/webksde/ddev-vscode-devcontainer-drupal-template/commit/57aa3041d8ddb074be77d74f02208b19fb004d19