Add a --no-update option to sampledata:deploy and sampledata:remove commands

[schmengler]

Description

This PR adds a --no-update flag for sampledata commands. It will be passed to composer, so that the user can add and remove sampledata modules without automatic composer update. This way, the actual update can be postponed to a manual composer execution. It gives the developer more control and is especially useful in scenarios where running composer from within bin/magento results in permission issues.

Manual testing scenarios

First scenario:

1. Run bin/magento sampledata:deploy --no-update on an installation without sampledata
2. composer.json should have been updated, nothing installed

Second scenario:

1. Run bin/magento sampledate:remove --no-update on an installation with sampledata
2. composer.json should have been updated, nothing installed

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[osrecio]

Thanks for your contribution @schmengler , can you please check the failing tests? Specifically this, also, can you squash your commits ?
Thanks!

[schmengler]

@osrecio Done! Ironically, the codacy issues that we see now ("long variables") come from code that I did not change, only moved up to a new abstract class. Hope, that's okay :)

[osrecio]

Yes, Codacy get changes from your commit although you only move it.
No problem about it :)

[osrecio]

Hi @schmengler , I tested and all is ok for me, thanks for your improvement.
Can you make the Backport for 2.3. Will be appreciate it. (ping me in the comment, I will assign to me, will be more quickly to process)

[osrecio]

@schmengler Thanks for your contribution, In the next release we will have this flag to use with command sampledata:deploy and sampledata:remove

[schmengler]

@osrecio sorry for the delay, here's a port to 2.3-develop: #12663

[osrecio]

Thanks @schmengler ! 😃