feat(nano): implement fundamental nano structures [part 2]

[glevco]

Motivation

Implement some fundamental nano types and structures.

No code is changed from the original implementation, but some code had to be removed to limit dependencies. Code is either completely removed or replaced with NotImplementedError('temporarily removed during nano merge'). For instance, no code is commented. This will make it easier to resolve conflicts in the nano repo. I'll use this approach in the following PRs, an they'll refill the NotImplementedError when it's possible.

Acceptance Criteria

• Implement some fundamental nano types and structures.

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[codecov]

Codecov Report

Attention: Patch coverage is 65.02547% with 206 lines in your changes missing coverage. Please review.

Project coverage is 83.64%. Comparing base (58a7796) to head (e04eefd).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
hathor/transaction/headers/nano_header.py	27.70%	107 Missing ⚠️
...athor/nanocontracts/blueprint_syntax_validation.py	22.85%	27 Missing ⚠️
hathor/nanocontracts/types.py	80.37%	20 Missing and 1 partial ⚠️
hathor/nanocontracts/context.py	60.86%	18 Missing ⚠️
hathor/nanocontracts/vertex_data.py	78.46%	14 Missing ⚠️
hathor/utils/leb128.py	67.44%	12 Missing and 2 partials ⚠️
hathor/utils/typing.py	90.74%	4 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1277      +/-   ##
==========================================
- Coverage   84.05%   83.64%   -0.42%     
==========================================
  Files         334      346      +12     
  Lines       24340    24929     +589     
  Branches     3603     3692      +89     
==========================================
+ Hits        20460    20852     +392     
- Misses       3156     3346     +190     
- Partials      724      731       +7     

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The base branch was changed.

[github-actions]

Bencher Report

Branch	feat/nano/fundamental
Testbed	ubuntu-22.04

Click to view all benchmark results

Benchmark	Latency	Benchmark Result minutes (m) (Result Δ%)	Lower Boundary minutes (m) (Limit %)	Upper Boundary minutes (m) (Limit %)
sync-v2 (up to 20000 blocks)	📈 view plot 🚷 view threshold	1.60 m (-1.78%) Baseline: 1.63 m	1.47 m (91.63%)	1.79 m (89.29%)

🐰 View full continuous benchmarking report in Bencher