* fetch xsuaa credentials in newman execution
* refactor CfUtils and moving to integration package
* removing CfUtils from old package com.sap.piper
* avoid config.verbose as "null"
* variable renamed for consistent naming
* handling NPE and other comments incorp
* added test cases
Co-authored-by: Oliver Nocon <33484802+OliverNocon@users.noreply.github.com>
Co-authored-by: Christopher Fenner <26137398+CCFenner@users.noreply.github.com>
