Relicense Repository - EPL+Apache

As this repository contains sample source code intended to be downloaded and expanded upon, it would be better suited with an EPL+Apache 2.0 dual license.

The OMP Governing Board has approved EPL-2.0 license waivers for sample repositories in Zowe, replaced by the dual license.

To re-license this repository, all contributors should consent by responding to this issue in the affirmative.