Ability to create and run tests at once #156

[Vassiliy-Kudryashov]

Description

• We create run configuration (type = PATTERN) that runs with coverage all generated tests at once
• Option button replaces standard OK button in the dialog, user can choose what to do
• In case we cannot generate any test for some class in batch mode we won't show tons of "Failed to generate..." message dialogs.
• Useful run{TARGET, runnable} API was moved to IntelliJApiHelper that replaced small existing AndroidApiHelper
• New field named "runGeneratedTestsWithCoverage" was introduced for both Settings and GeneratetestsModel to persist user's choice

Fixes #156

Type of Change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Manual Scenario

Choose some example project, open generation dialog. Now it's possible to choose "Generate & Run" option and then call it.
As a result there should appear new (temporary) Run Configuration for the generated test scope, it starts automatically with coverage (IDEA built-in feature)

Checklist (remove irrelevant options):

This is the author self-check list

• The change followed the style guidelines of the UTBot project
• Self-review of the code is passed
• The change contains enough commentaries, particularly in hard-to-understand areas
• No new warnings

[Vassiliy-Kudryashov]

I've added fallback in case 'Code Coverage for Java' plugin is not enabled