Use JUnit Jupiter Platform plaform to run all tests

[olamy]

New feature, improvement proposal

Currently, Surefire has a lot of different code to run tests:

• junit 3
• junit 4
• junit 4.7
• junit 5
• testng

The JUnit Platform can run tests from Junit 4.12 (via junit vintage) to 5.x and including testng via a dedicated engine https://github.com/junit-team/testng-engine

The idea is to simplify code and reduce maintenance by using a single engine. To simplify maintenance, old code for Junit 3.x to 4.11 (including junit--dep) will also be removed.