v2.0.0

What's Changed

• [Phase 1] v2.0 Architecture Refactoring - Directory Structure and Core Interfaces by @gmajor-encrypt in #49
• [Phase 2] Basic Integer Types Implementation by @gmajor-encrypt in #50
• [Phase 2] Compact Type Implementation by @gmajor-encrypt in #51
• [Phase 2] Special Types Implementation (Issue #36) by @gmajor-encrypt in #53
• [Phase 3] Compound Types (Issue #35) by @gmajor-encrypt in #52
• [Phase 2] Custom Type Registration Mechanism (Issue #37) by @gmajor-encrypt in #54
• [Phase 3] Metadata Parser Refactoring (Issue #38) by @gmajor-encrypt in #55
• [Phase 3] Extrinsic Codec Refactoring (Issue #39) by @gmajor-encrypt in #56
• [Phase 3] Event Parser Optimization (Issue #40) by @gmajor-encrypt in #57
• [Phase 4] Performance Benchmark Setup (Issue #41) by @gmajor-encrypt in #58
• [Phase 4] Unit Test Coverage Improvement (Issue #42) by @gmajor-encrypt in #59
• [Phase 4] Static Analysis and Code Quality (Issue #43) by @gmajor-encrypt in #60
• [Phase 4] polkadot.js Compatibility Testing (Issue #44) by @gmajor-encrypt in #61
• [Phase 5] API Documentation (Issue #45) by @gmajor-encrypt in #62
• [Phase 5] Usage Guide and Examples (Issue #46) by @gmajor-encrypt in #63
• [Phase 5] Migration Guide (Issue #47) by @gmajor-encrypt in #64
• docs: add CHANGELOG.md for v2.0.0 release by @gmajor-encrypt in #65

Full Changelog: v1.1.2...v2.0.0