runtime: initial prototype to enable multi-value and reference-types #7095

Job	Run time
Cargo Nextest (Linux)	9m 58s
Protobuf Backward Compatibility	10s
Backward Compatibility	11m 9s
Cargo Nextest (Linux Nightly)	10m 12s
Cargo Nextest (MacOS)	11m 51s
Database Migration	11m 17s
Genesis Changes	9m 33s
Sanity Checks	6m 24s
Cargo Audit	19s
Cargo Deny	34s
Cargo Clippy	8m 55s
Cargo Fmt	20s
Non-default Configuration Builds	1m 21s
Themis	40s
Unused Dependencies	6m 44s
Rust Doctests	11m 4s
Lychee Lints	12s
Protocol Schema	14m 10s
Style	47s
Upgradability	10m 59s
Windows check for building public libraries	3m 30s
Generate Coverage Artifact	0s
Upload Coverage	0s
	2h 10m 9s

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