Re-work config file

Add an explicit section for tests that would be a dictionary so that an example config would look like:

```
tests:
test_h265_color:
app: ffmpeg
comparisontest:
- testtype: idiff
- testtype: assertresults
tests:
- assert: less
value: max_error
less: 0.00195
description: h265 color tests of different pix-fmts
encoding_template: ffmpeg -y {input_args} -i "{source}" {encoding_args}
-y "{outfile}"
name: test_h265_color
sources:
- ../sourceimages/chip-chart-1080-noicc.png.yml
- ../sourceimages/chip-chart-1080-16bit-noicc.png.yml
- ../sourceimages/smptehdbars_16.png.yml
suffix: .mp4
wedges:
yuv444p10lex265: &basex265
-c:v: libx265
-vf: '"scale=in_color_matrix=bt709:out_color_matrix=bt709"'
-color_primaries: bt709
-color_range: tv
-color_trc: bt709
-colorspace: bt709
-pix_fmt: yuv444p10le
-preset: placebo
-x265-params: lossless=1
-tag:v: hvc1
-profile:v: main444-10

yuv444p12lefullx265:
<< : *basex265
-vf: '"scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709"'
-color_range: pc

videotoolbox_h265_bgra:
<< : *basex265
-c:v: hevc_videotoolbox
#-vf: '"scale=in_range=full:in_color_matrix=bt709:out_range=full:out_color_matrix=bt709"'
-color_range: pc
-colorspace: rgb
-profile:v: main
-pix_fmt: bgra

test_h265_color_420:
app: ffmpeg
comparisontest:
- testtype: idiff
compare_image: ../sourceimages/chip-chart-1080-16bit-noicc-yuv420p10le.png
- testtype: assertresults
tests:
- assert: less
value: max_error
less: 0.00195
description: h265 color tests of different pix-fmts
encoding_template: ffmpeg -y {input_args} -i "{source}" {encoding_args}
-y "{outfile}"
name: test_h265_color
sources:
- ../sourceimages/chip-chart-1080-16bit-noicc.png.yml
suffix: .mp4
wedges:
yuv420p10le: &basex265
-c:v: libx265
-vf: '"scale=in_color_matrix=bt709:out_color_matrix=bt709"'
-color_primaries: bt709
-color_range: tv
-color_trc: bt709
-colorspace: bt709
-pix_fmt: yuv420p10le
-preset: placebo
-x265-params: lossless=1
-tag:v: hvc1
-profile:v: main444-10

reports:
description: This is testing h265 color encoding.
directory: hevc-color-encode
name: hevc-color-tests
templatefile: colorweb.html.jinja
title: Ffmpeg encoding guide tests

```

I might also remove some of the duplicate info, such as the name, and in the reports, the directory and name fields.

Usa la configuración de ejemplo del issue como estructura objetivo. Revisa las secciones tests y reports propuestas y determina qué campos duplicados, incluidos name, directory y report name, deben conservarse. Se considera terminado cuando la estructura de configuración es coherente y el ejemplo refleja con precisión el formato compatible.

Escrito por el modelo de indexación a partir del texto del issue.