Add possibility to save a summary of test execution about htat

[GUSAR1T0]

Investigate how it can be done in JUnit 5.
Link: JUnit 5 User Guide - Discovering Tests.

1. It should let to remove console-standalone module dependency from project;
2. It can reduce the classpath of test scenarios classes (related with #8 issue).

[GUSAR1T0]

Summary should contain the following things:

• Test tree results;
• Test final results;
• Possible failure messages.

This file of log can be located into ./htat/$date/$time/logs/summary.log.
Create summary writer into FW module.
Create test engine into FW module.