When a package defined multiple data fidelity modes, its tests should try to use all of them. Data fidelity modes are defined in the spec on elastic/package-spec#517.

Changes needed for this:

• Pipeline tests use the simulate API to test pipelines. It should be able to install the specific templates for each fidelity mode, according to the spec definition.
• System tests should be able to configure policies with the different fidelity modes.
• Fields validations should be able to interpret the fields available for each fidelity mode.

Related to:

• [Fleet] Add support for handlebars templating in fields/*.yml and ingest_pipeline/*.yml files package-spec#517
• [Fleet] Validate templated mappings and ingest pipelines for all data fidelity levels package-spec#518