[Scala] added new scala-cask generator for the cask framework (#18344)

* Ran `./new.sh -n scala-cask -s` to generate a new Scala Cask impl

* removed scala-cask-petstore

* Added Scala-cask param parser for BigDecimals

* added scala cask to samples

* splitting out validation and json

* Added GitHub workflow support

* regenerated cask samples

* cask build fix for local builds

* regenerated samples

* trying to reproduce failed cask build. checking in compiles sources, which have been reformatted

* reverted whaitespace change

* cask fix - adding gitignored files

* scala cask toLowreCase fix

* scala cask toUpperCase fix

* cask regenerated samples

* improved exception handling for scala cask

* File separator fix for windows

* Noob fix for cask

* regenerated api package

* Removed environment variable settings, debug code

* Updated samples

* moved scala-cask output

* Regenerated samples

* scala cask fix

* Updated scala cask settings for more typical package structure
Removed cask client samples

* cask - reran generate samples

* Removed duplicate ScalaCaskServer entry

* minor enhancements

* update samples

* update templates

---------

Co-authored-by: aaron.pritzlaff <aaron@kindservices.co.uk>

samples/server/petstore/scala-cask/example/Server.scala

@@ -0,0 +1,61 @@
+//> using scala "3.3.1"
+//> using lib "cask.groupId::scala-cask-petstore:0.0.1-SNAPSHOT"
+//> using repositories https://maven.pkg.github.com/GIT_USER_ID/GIT_REPO_ID
+
+
+/**
+* This single file can contain the business logic for a REST service.
+* ====================================
+* == zero-install build with docker ==
+* ====================================
+*
+*
+* ```
+* docker build . -t scala-cask-petstore:latest
+* ```
+* ======================
+* == Building Locally ==
+* ======================
+* This project can be built using [[scala-clit][https://scala-cli.virtuslab.org]]
+*
+* To simply run the project
+* ```
+* scala-cli Server.scala
+* ```
+*
+* To create a runnable jar, run:
+* ```
+* scala-cli --power package Server.scala -o app-assembly --assembly
+* ```
+*
+* To produce a docker image (no need for the Dockerfile), run:
+* ```
+* scala-cli --power package --docker Server.scala --docker-image-repository app-docker
+* ```
+*
+* To generate an IDE project:
+* ```
+* scala-cli setup-ide . --scala 3.3
+* ```
+*/
+package app
+
+import cask.groupId.server.BaseApp
+import sample.cask.api.*
+import sample.cask.model.*
+
+import java.io.File
+
+// TODO - write your business logic for your services here (the defaults all return 'not implemented'):
+val myPetService : PetService = PetService() // <-- replace this with your implementation
+val myStoreService : StoreService = StoreService() // <-- replace this with your implementation
+val myUserService : UserService = UserService() // <-- replace this with your implementation
+
+/** This is your main entry point for your REST service
+ *  It extends BaseApp which defines the business logic for your services
+ */
+object Server extends BaseApp(appPetService = myPetService,
+appStoreService = myStoreService,
+appUserService = myUserService):
+  start()
+