- adds two new functions to allow configuration to be read without adding to environment
readValueAtPathFromFile(filePath: string) => (path[]): Promise<*>
readValueFromPath(path: string[], data: Sop, decryptKey: ?Buffer) => Promise<*>
readValueAtPathFromFile(filePath: string) => (path[]): Promise<*>
readValueFromPath(path: string[], data: Sop, decryptKey: ?Buffer) => Promise<*>