RCP-240313B, -0326A, pre-0327A: Simplify scripting, support future transformers, remove type systems, make metadata fields multiple

[dr-orlovsky]

Alternative to #221

[codecov]

Codecov Report

Attention: Patch coverage is 1.99005% with 197 lines in your changes are missing coverage. Please review.

Project coverage is 14.5%. Comparing base (760b232) to head (df250c0).

❗ Current head df250c0 differs from pull request most recent head 938248b. Consider uploading reports for the commit 938248b to get more accurate results

Files	Patch %	Lines
src/validation/logic.rs	0.0%	83 Missing ⚠️
src/contract/meta.rs	8.3%	22 Missing ⚠️
src/validation/state.rs	0.0%	21 Missing ⚠️
src/vm/op_contract.rs	0.0%	19 Missing ⚠️
src/validation/schema.rs	0.0%	13 Missing ⚠️
src/validation/validator.rs	0.0%	8 Missing ⚠️
src/schema/state.rs	0.0%	6 Missing ⚠️
src/vm/isa.rs	0.0%	6 Missing ⚠️
src/contract/operations.rs	0.0%	4 Missing ⚠️
src/contract/commit.rs	0.0%	3 Missing ⚠️
... and 6 more

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #227     +/-   ##
========================================
+ Coverage    14.1%   14.5%   +0.4%     
========================================
  Files          33      30      -3     
  Lines        4154    3862    -292     
========================================
- Hits          585     559     -26     
+ Misses       3569    3303    -266     

Flag	Coverage Δ
rust	14.5% <2.0%> (+0.4%)	⬆️

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