#1 setup projects

[ingomohr]

Added...

• feature
• updatesite
• test fragment
  • with junit5 and junit4 as imported package
  • junit4 is necessary for mvn to build successfully
  • Contains a sample test that can be removed once there is an actual test
• poms to build
• Github workflow (same as for Spectrum) to call CI and to deploy updatesite builds
• lib to java-stream-player
  • added manually
  • JAR from a tmp non-RCP project with the mvn dependency @AObuchow added to the issue description
  • Sources ZIP as downloaded from Github repo (so that the sources are also available while editing code that uses that API)
  • (for latest version 10.0.2)
  • added a unit test to prove that the lib's API can be accessed.

[ingomohr]

I suggest moving the leftover one thing:

• product
  • The last e4 product I built was 3 years ago. I need to refresh that first