feat(stark-all): update to Angular 7 + TypeScript 3.1

[SuperITMan]

Remove --no-optional param
Remove Node6 support. Add Node10 Support.
Update engines for each package

ISSUES CLOSED: #871

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/NationalBankBelgium/stark/blob/master/CONTRIBUTING.md#-commit-message-guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[X] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Issue Number: #871

What is the new behavior?

The following deps have been updated:

• @angular/... : 7.x
• @ngx-translate/core: 11.0.1
• @ngrx/...: 7.0.0-beta.0
• typescript: 3.1

Tsickle dependency has been added in the root of the project because it has been removed from the deps of @angular/compiler-cli. Tsickle is needed in our build process.

The param --no-optional has been removed in the install scripts to improve cross-platform usage of the project (ie: on Windows and Linux, fsevents is not used but it is used on MacOS. It should be part of the package-lock.json file as optional dependency).

The rule "no-unused-variable": true has been removed from tslint.json because now it is part of TypeScript 3. See palantir/tslint#4046 for more info.

The tests of the project are now runned with Node10 in replacement of Node8.

Does this PR introduce a breaking change?

[ ] Yes
[X] No

Other information

[christophercr]

You need to change this too:

• remove all angular related deps from greenkeeper.json
• change the version of all ngrx packages to version 7 beta 0

[coveralls]

Coverage increased (+0.01%) to 93.566% when pulling edd108d on SuperITMan:feature/update-angular-7-typescript-3 into fc4a5f5 on NationalBankBelgium:master.