Cleanup automation on Execution Flow Operations

There is too many operations in this category. We could factorise some of the operations adding new parameters. (like a boolean for running in a separate transaction, no need to have a dedicated operation each time.) TODO: more specs

• org.nuxeo.ecm.automation.core.operations.execution.RunDocumentChain should have a parameter to include same feature than org.nuxeo.ecm.automation.core.operations.execution.RunInNewTransaction

• Same for org.nuxeo.ecm.automation.core.operations.execution.RunOperationOnListInNewTransaction and org.nuxeo.ecm.automation.core.operations.execution.RunOperationOnList kept

• Add tx feature for org.nuxeo.ecm.automation.core.operations.execution.RunFileChain