Add the ability to use the preprocessor with space offset

[mikecooke77]

Description

The obs bias yaml files in the radiance yamls need to be included from jjaux because they need to just include the current active satellites. These contain anchors which will be cleared by yp-data. In order to allow this inclusion an ability to include the spaces before a DIRECT_INCLUDE is needed. The datapreprocessor can then be used for this insertion. It also makes the tool more flexible.

A slight change in name from yaml_header_file to yaml_aux_file has been made in the code to reflect this now more flexible approach.

Issue(s) addressed

None raised

Dependencies

None

Impact

Additional functionality in the preprocessor

Checklist

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have run the unit tests before creating the PR