Ogmios package, module and test

[brainrake]

fixes #30 #31 #32

• cardano-node 8.8.* and 8.9.* do not build so we're stuck with 8.7.3
• work around cardano-node socket permissions issue: poll and chmod
• work around cardano-node configuration json sharing issue: set from cardano-configurations for all services (found specific version for cardano-node 8.7.3)
• add ogmios binary release 6.1.0 6.2.0 because it fails to build with haskell.nix and 6.0.3 is too old
• add ogmios module from ogmios-nixos
• update ogmios module to work with newer ogmios
• update ogmios module to work with cardano.nix cardano-node
• avoid segfaults, lock down ogmios systemd security
• update module field documentation
• update vmTests (formerly nixosTests) to automatically handle checks, effects, and add apps to run tests
• update vmTests to expose check and effect derivations
• fix run-vm-test argument quotation and shellcheck errors
• add vm test to check ogmios sync progress
• update readme, detail how to run integration test showing cardano-node and ogmios works

[avnik]

Generally all comments are non-blocking, if you argument -- I can withdraw my comment, and approve during today meeting.
General LGTM

[aciceri]

Oh also the documentation is not generated for modules in modules/services

[brainrake]

Added issue for documentation since I could not fix it quickly.
#54

[brainrake]

Resolved all issues discussed above.

[brainrake]

ogmios 6.2.0 just came out

Everything is addressed now

[zmrocze]

Ok