bcs

Full rewrite with a single public entry point (package:bcs/bcs.dart);
implementation moved to lib/src/.

Breaking changes:

• Remove the legacy string-based registry API (LegacyBCS,
  registerStructType, ...) and the split libraries (bcs_type.dart,
  utils.dart, hex.dart, index.dart, consts.dart, ...).
• Rename encoding helpers to hexEncode/hexDecode and
  base58Encode/base58Decode; drop the Encoding enum and base64 wrappers
  (use dart:convert).

Improvements:

• Strictly typed inputs; u64/u128/u256 accept int, BigInt or decimal
  String. struct/enumeration accept any Map or object with toJson().
• Stricter, hardened decoding: canonical booleans, bounds-checked reads,
  validated enum indexes, ULEB128 capped at u32, vector lengths checked
  against remaining input, strict hex parsing, byte-range validation.
• BcsWriter grows its buffer geometrically and writes in bulk.
• Strict analyzer modes; requires Dart 3.2+.

Full rewrite of the package as idiomatic Dart. Breaking changes.

• Single public entry point package:bcs/bcs.dart; implementation moved to lib/src/.
• Removed the legacy string-based registry API (LegacyBCS, registerStructType, ...).
• Renamed encoding helpers to hexEncode/hexDecode and base58Encode/base58Decode; removed the Encoding enum and base64 wrappers (use dart:convert).
• Strictly typed inputs for primitive types; u64/u128/u256 accept int, BigInt or decimal String. struct/enumeration accept any Map or an object exposing toJson().
• Stricter decoding: canonical booleans, bounds-checked reads, validated enum indexes.
• BcsWriter grows its buffer geometrically and writes byte ranges in bulk; its write methods return void (use cascades for chaining) and the allocateSize option is gone.
• Enabled strict analyzer modes and additional lints; requires Dart 3.2+.

• Feat: Replace flutter_test with test package

• Optimize: Reading Bytes

• Refactor: version 2

• Feat: Register Fixed Array Type

• Fix: Convert Object to Map

• Fix: read128/read256 padLeft

• Fix: Iterate MappedListIterable

• Refactor BCS.

• Initial version, created by 0xmove.