[LBL] Define a completely public set of test data and produce examples for all instruments

[njcuk9999]

• [ ] Compile a similar number of files as the current test_data set but all data is public
• [ ] Test

[njcuk9999]

@eartigau this seems like a task for you.

It would be nice to have good BERV coverage but no more than ~20 files per instrument/mode

Current modes required:

• carmenes_vis
• espresso
• harps_orig
• harps_eso
• harpsn_orig
• harpsn_eso
• nirps_ha_apero
• nirps_he_apero
• nirps_ha_eso
• nirps_he_eso
• spirou_apero
• spirou_cadc
• maroonx_b
• maroonx_r
• sophie

[njcuk9999]

Include a set of FP for at least one of the instruments (doesn't have to be all)