Make a top-level ICE pom.xml from org.eclipse.ice.build
*Created by: marshallmcdonnell*
From the off-topic discussions in a closed issue, had discussions to potentially move the pom.xml file in [`org.eclipse.ice.build` pom file](https://github.com/eclipse/ice/blob/next/org.eclipse.ice.build/pom.xml) to the top-level of ICE:
Key conversation links:
- Suggestion part 1: https://github.com/eclipse/ice/issues/475#issuecomment-717271343
- Suggestion part 2: https://github.com/eclipse/ice/issues/475#issuecomment-717988044
- Response: https://github.com/eclipse/ice/issues/475#issuecomment-718000006
Would like to move this to the top-level so ICE has one "main pom.xml" file.
Will help using JitPack in other projects that have ICE sub-projects as dependencies ([example for multi-module repo](https://github.com/jitpack/maven-modular))
issue