[EPIC] E2E large block reconstruction test tracking issue

[liamsi]

• downloading blocks: 1mb, 2mb, 4mb (original data), maybe larger to see when things break
• DASing large blocks
• downloading per namespace
• etc

All these should be done on a real network ideally.

TODO

• [test]: test DASing with different max block sizes and amount of light nodes #266
• test(share): add Full Node reconstruction tests #702
• app: automatically create network of validators with testground from scratch test-infra#27

[Wondertan]

For us to analyze the results of such tests deployed on the real network correctly, we need to integrate metrics and/or tracing into the node codebase. For more details consult the ADR #901.

[Wondertan]

Full Node block retrieval time figures captured by @musalbas on Mamaki testnet:

average times for 8x8: ~0.5s
average times for 16x16: ~1s
average times for 32x32: 3-5s
average times for 64x64: 5-10s
average times for 128x128: 10s-30s
average times for 256x256: 80-250s

[Bidon15]

Ref: #1156