Add org.jbpm.bpmn2;resolution:=optional package
(cherry picked from commit 0decc1b8ca18d574b29c1e9382df23c2f1cebd20)
Add missing package org.jbpm.runtime.manager.impl required for OSGI deployment
(cherry picked from commit 38b534c95ad4ade0c838f6f37b967a3c43a3908d)
Add resolution as optional to avoid cycling dependencies when bundles are deployed
(cherry picked from commit 09c8a5fe611c58ea3657cf10f6014ed4593e69a7)
Doc for workbench embedded mode