Minimal project setup

[ivansenic]

Create the minimal project setup:

• gradle multip-project build (gradle 5.0 would be great if this is out)
  • since we would have only one project not sure if we need any crazy dependency strategy
  • keep jmh, jococo, etc
• new project for the agent (inspectit-oce-agent?)
  • target the 1.8 for now
  • create the agent entry point, implement both premain and agentmain (simple sysout) -> see https://docs.oracle.com/javase/7/docs/api/java/lang/instrument/package-summary.html
  • create proper manifest in the build
  • copy from the old the utility to check if dependencies are in 1.8 target
  • what else we would need right away from the old project?
• .gitignore that works with intellij (at best copy what's generated from Spring initz, I always found these to be good)
• IntelliJ setup
  • save actions plugin, export configuration -> automatic formatting and import org when saved (Ivan can share configuration)
• create CONTRIBUTE.MD and share any needed development environment setup

Confirm:

• agent can be added by -javaagent (test versions 8 & 11)
• agent can be attached to any already running JVM with utility like https://github.com/apangin/jattach (test versions 8 & 11)

[mariusoe]

since we would have only one project not sure if we need any crazy dependency strategy

I think we can (and should) keep this simple. I see no benefit if we create a complicated and fancy dependency strategy