refactor(nano): simplify index records

[glevco]

Motivation

This PR addresses a few shortcomings of the current index update records model used in the nano Runner to update indexes after a nano is executed. The use cases evolved and the model became outdated. It addresses these:

1. The fee charge of an action was using a type that was named after a syscall, not an action.
2. The fee charge was using the MELT type, but it's not a melt.
3. Both token creation and balance update were using the same type, but they're handled differently.

In a subsequent PR, the syscall token balance rules which are used for token fees will also be simplified.

Acceptance Criteria

• Move index update types from the runner/types.py file to their own file, runner/index_records.py.
• Rename the runner/types.py file to runner/call_info.py, because now it only contains call info-related types.
• Remodel the index update types to simplify them and make them clearer in intent:
  • IndexUpdateRecordType -> becomes IndexRecordType, and its options are updated to better reflect the intentions.
  • UpdateAuthoritiesRecordType -> is removed and included in IndexRecordType for simplification.
  • SyscallCreateContractRecord -> becomes CreateContractRecord
  • UpdateAuthoritiesRecord doesn't change.
  • SyscallUpdateTokenRecord -> is now broken into two types, CreateTokenRecord and UpdateTokenBalanceRecord. It was a single type encompassing two different intentions.
  • The name Syscall is removed from type names because now we also have actions that affect indexes. Removing it is more generic.
  • __post_init__ validations are improved.

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

❌ Patch coverage is 89.03226% with 34 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.04%. Comparing base (ae485dd) to head (5a52530).
⚠️ Report is 11 commits behind head on raul-oliveira/fee-token-verification.

Files with missing lines	Patch %	Lines
hathor/nanocontracts/runner/index_records.py	78.57%	18 Missing ⚠️
hathor/indexes/manager.py	69.23%	1 Missing and 3 partials ⚠️
hathor/wallet/resources/thin_wallet/send_tokens.py	50.00%	3 Missing ⚠️
hathor/indexes/rocksdb_tokens_index.py	60.00%	1 Missing and 1 partial ⚠️
hathor/nanocontracts/balance_rules.py	77.77%	1 Missing and 1 partial ⚠️
hathor/transaction/transaction.py	92.85%	1 Missing and 1 partial ⚠️
hathor/verification/transaction_verifier.py	94.28%	2 Missing ⚠️
hathor/transaction/types.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                           Coverage Diff                            @@
##           raul-oliveira/fee-token-verification    #1460      +/-   ##
========================================================================
+ Coverage                                 86.02%   86.04%   +0.01%     
========================================================================
  Files                                       435      437       +2     
  Lines                                     33918    34015      +97     
  Branches                                   5297     5317      +20     
========================================================================
+ Hits                                      29179    29269      +90     
+ Misses                                     3693     3692       -1     
- Partials                                   1046     1054       +8     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

The base branch was changed.

The base branch was changed.