Develop values template render

[nsyzrantsev]

Description

Develop values template render using the Tera template engine, inspired by Jinja2/Django templating engines.

This render will be included in the zefiro-cwl repository.

Input Example:

Template before rendering (values.yml):

in_file:  
  class: File  
  location: '{{ inputLocation }}/output/input.txt'  
out_file: 'output.txt'  

Output Example:

Rendered template with input data {"inputLocation": "s3://bucket/sample/"}:

in_file:  
  class: File  
  location: 's3://bucket/sample/output/input.txt'  
out_file: 'output.txt'  

Notes:

• inputLocation is a constant Jinja variable that can be replaced dynamically during the rendering process. Other variables can have a custom name.