* merged routing_only_datastream and datastream script

* addresses some comments

* edit to match code in pr #40

* fixed tar start section to match pr #40

* addressing comments initial pass

* fix variable expansion

* add missing underscore

* removed routing_only flag, unified ngen docker command

* edit config file generation

* add map file

* edit forcing section in realizaiton

* added check to comment out intermediate parquet conversion

* fix what was breaking tests

* missing comma

* made routing only flag opitonal

* address review comments, add tests

* realization template add

* added skip validation export