Upgrade angular to >=12 <=16

[petrhavel2]

Breaking change is to upgrade angular to latest versions.

PeerDependencies:

• upgraded peerDependencies of angular >=12 <=16, removed angular/http
• peerDependency ngrx updated to latest version 16.3.0, without range as is for Angular

Structural changes

• merged subproject /demo-app/client into main root project
  • it causes different unexpected behaviour in usage two sources of ./node_modules
  • /demo-app/client ... angular app was newer used except tests. Rest of code moved to folders in root
• switched tslint to eslint
• removed CI tests based on Dockerfile -> moved to GitHub Actions
• removed /dist folder which is in .gitignore
• code tests for generated code moved from /demo-app/client/tests to /tests

Functional changes

1. updated generated code of ngrx/effects, change from @effect -> createEffect (pipe functionality verified)
2. changes related to the new version of typescript (override extended function)
3. added integer validator for forms
4. fixed calling of commander
5. support function createDir changed to create recursive structure

Test-case changes

1. fixed test in param.spec.ts, collision of string[] and number[]
2. upgraded tests to withContext
3. fixed deleting properties for tests [registration.service.spec.ts], [put-order.service.spec.ts]