Changes to Render an HTML template to an image with dynamic layer updates

added the new required request property html_file

removed the request property background.color

removed the request property background.imageFile

removed the request property layers.{name}.image.cropHeight

removed the request property layers.{name}.image.cropWidth

removed the request property layers.{name}.image.cropX

removed the request property layers.{name}.image.cropY

removed the request property layers.{name}.image.fit

removed the request property layers.{name}.image.imageFile

removed the request property layers.{name}.image.isVisible

removed the request property layers.{name}.image.opacity

removed the request property layers.{name}.svg.color

removed the request property layers.{name}.svg.isVisible

removed the request property layers.{name}.svg.opacity

removed the request property layers.{name}.text.backgroundColor

removed the request property layers.{name}.text.color

removed the request property layers.{name}.text.content

removed the request property layers.{name}.text.font

removed the request property layers.{name}.text.isVisible

removed the request property layers.{name}.text.opacity

removed the request property template_id

added the new optional request property height

added the new optional request property layers.{id}.background-color

added the new optional request property layers.{id}.background-image

added the new optional request property layers.{id}.color

added the new optional request property layers.{id}.content

added the new optional request property layers.{id}.src

added the new optional request property layers.{id}.{css-property}

added the new optional request property width

removed the non-success response with the status 404