EQPS-240: magento2-infrastructure SVC Extraction Sync

[roribio]

Scope

Story

• EQPS-240: Incorporate latest magento2-infrastructure SVC code to public SVC repo.

The goal of this effort is to break out the SVC tool from the “magento2-infrastructure” GitHub repository into its own project so it can be open-sourced and shared with the Magento community at large.

Learn more on the project’s wiki page, here.

Changes

• Incorporated changes from magento2-infrastructure SVC tool since after Sep. 27th, 2019.
• Updated namespaces to reflect directory structure of independent tool. Code is now namespaced as 'Magento/SemanticVersionChecker'
• Updated composer dependencies to include required libraries to allow independent operation. This includes wikimedia/less.php, phpstan/phpdoc-parser and symfony/console.
• Updated composer PS4 autoload to include "Magento\\SemanticVersionChecker\\Test\\": "tests/" to allow unit tests to conform to correct directory structure.
• Updated Unit Tests, including bootstrap and PHPUnit files.
• Changed composer to include autoloading test namespace.

Notes

Manual Testing Scenarios

See Manual Testing Scenarios section at https://github.com/magento/magento2-infrastructure/pull/974

Related Pull Requests

• https://github.com/magento/magento2-infrastructure/pull/974