Automatically install Spring test dependencies into user project if required

[EgorkaKulikov]

Description

Supported an auto-installation of Spring or Spring Boot testing dependencies into user projects

Also:

• Added a setting to choose unit or integration testing
• "Framework will be installed" message is shown
• This setting is stored in State
• LibraryMatcher class refactored

How to test

Manual tests

• Pure Spring project, no test dependency => it is installed with the same version as in project
• Pure Spring project, test dependency is present => no more dependencies installed
• Same two scenarios for Spring Boot projects

Self-check list

• I've set the proper labels for my PR (at least, for category and component).
• PR title and description are clear and intelligible.
• I've added enough comments to my code, particularly in hard-to-understand areas.
• The functionality I've repaired, changed or added is covered with automated tests.
• Manual tests have been provided optionally.
• The documentation for the functionality I've been working on is up-to-date.