Added GitHub Actions workflow

[madmongoose]

Description

GitHub Actions CI.

Background

What idea led to this PR, general task description
Switching from AppVeyor due to restrictions

Changes

Workflow executing next tasks:

1. Checkout repository;
2. Setup Java 8 JDK;
3. Correcting a Build Number;
4. Setup Node.js 8;
5. Setup Python 3.9;
6. Run python3 -m pip install mkdocs mkdocs-material;
7. Build JAR with H2 support;
8. Rebuild JAR with PSQL
9. Generate JaCoCo test report;
10. Upload coverage report to Codecov;
11. Get Current Version;
12. Configure AWS Credentials (for develop and releases branches only);
13. Copy a Build Artifact to AWS (for develop and releases branches only);
14. Upload a build artifact on the GitHub Actions job page
15. Publishing to Docker Hub (for releases branches only);
16. Create GitHub Release (for releases branches only);
    Average execution time for the develop branch - 13m
    
Average execution time for the release branch - 15m 45s

What was changed in the system to accomplish the task
 Added workflow file ngb-ci.yml to repository, added environments.
The file ngb-ci.yml was created in the .github/wokflows/ folder

What was changed in the system to accomplish the task

Acceptance criteria

How to check that a task is accomplished, what user shall do to check it

Check list

• Unit tests are provided
• Integration tests are provided (if CLI/API was changed)
• Documentation is updated
  logs_44.zip
  [logs_45.zip](h

ttps://github.com/epam/NGB/files/8992298/logs_45.zip)