[Feature]: Support templating

[jackton1]

• Potentially use jinja2 to render context variables for each project in the organization

Example:

Context env.json

{
 'project_a': {
    'title': 'custom project a title'
 },
 'project_b': {
    'title': 'custom project b title'
 },
}

Template upload.yml

name: {{ title }}

Uploads

To: project_a

name: custom project a title

To: project_b

name: custom project b title