parachain pvf

[turuslan]

Referenced issues

• Data availability #1311
  Closes PoV execution and validation #1386

Description of the Change

Validate PoV with WASM (https://github.com/paritytech/polkadot/blob/master/node/core/candidate-validation/src/lib.rs)

Benefits

• can validate parachain block

Possible Drawbacks

• fix RuntimeInstancePool instantiate when module is evicted.
• move RuntimeInstancePool instance list into module lru.
• Pass lru size in RuntimeInstancePool constructor.

[Harrm]

I didn't quite get the part about RuntimeInstancePool in the drawbacks.

[codecov]

Codecov Report

Merging #1383 (3af955e) into master (96ab3f7) will decrease coverage by 0.09%.
The diff coverage is 0.86%.

@@            Coverage Diff             @@
##           master    #1383      +/-   ##
==========================================
- Coverage   24.42%   24.32%   -0.10%     
==========================================
  Files         641      643       +2     
  Lines       24148    24251     +103     
  Branches    12520    12573      +53     
==========================================
+ Hits         5899     5900       +1     
- Misses      12986    13085      +99     
- Partials     5263     5266       +3     

Impacted Files	Coverage Δ
core/common/visitor.hpp	58.33% <ø> (ø)
core/network/types/collator_messages.hpp	0.00% <0.00%> (ø)
core/parachain/pvf/pvf.hpp	0.00% <0.00%> (ø)
core/parachain/pvf/pvf_impl.cpp	0.00% <0.00%> (ø)
core/runtime/runtime_api/impl/parachain_host.cpp	0.00% <0.00%> (ø)
...me/runtime_api/impl/parachain_host_types_serde.cpp	0.00% <ø> (ø)
core/runtime/runtime_api/parachain_host.hpp	0.00% <ø> (ø)
core/injector/application_injector.cpp	39.79% <100.00%> (-0.09%)	⬇️
core/api/service/impl/api_service_impl.cpp	13.46% <0.00%> (-1.02%)	⬇️
core/metrics/impl/prometheus/handler_impl.cpp	28.57% <0.00%> (+2.04%)	⬆️
... and 1 more

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