Add top level Reactor POM for building of whole CRCE.
Set up CRCE Modules dependencies for remaining modules.
Other minor POM fixes.
Set up CRCE Modules dependencies for active modules.
Set up CRCE Core for GitHub.
Add CRCE Reactor POM to ease bulk building of all artifacts.
Add CRCE Core POM as a summary dependency of Core for other downstream modules.
Set up crce-parent POM for GitHub.