feat: Add account event parser and protocol type definitions

- Add account event parser (account_event_parser.rs) for account-level event handling
- Introduce type definitions for pumpfun, pumpswap, raydium_amm_v4, raydium_clmm, raydium_cpmm protocols
- Enhance event processor to support account event processing alongside transactions
- Improve subscription system with separate transaction and account filters
- Optimize parser configuration using Option types for cleaner code structure
- Update examples and documentation to reflect new capabilities

Changes include:
- 6 new types.rs files for protocol-specific data structures
- Updated event processor for account, transaction, and block meta events
- Refactored subscription manager with account filtering support
- Enhanced metrics and batch processing logic

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "solana-streamer-sdk"
-version = "0.2.4"
+version = "0.3.0"
 edition = "2021"
 authors = ["William <byteblock6@gmail.com>", "sgxiang <sgxiang@gmail.com>", "wei <1415121722@qq.com>"]
 repository = "https://github.com/0xfnzero/solana-streamer"
@@ -29,6 +29,7 @@ spl-associated-token-account = "7.0.0"
 borsh = { version = "1.5.3", features = ["derive"] }
 serde = { version = "1.0.215", features = ["derive"] }
 serde_json = "1.0.134"
+serde-big-array = "0.5.1"
 futures = "0.3.31"
 futures-util = "0.3.31"
 base64 = "0.22.1"