refactor: Replace global address lookup table cache with direct fetch approach

Replace the global AddressLookupTableCache with a direct fetch function to simplify address lookup table management. This change improves code maintainability by removing global state and makes the API more explicit.

Key changes:
- Remove AddressLookupTableCache and AddressLookupManager
- Add new fetch_address_lookup_table_account function
- Update TradeBuyParams and TradeSellParams to use AddressLookupTableAccount instead of Pubkey
- Update all examples to use the new direct fetch approach
- Update documentation to reflect the simplified workflow

src/common/mod.rs

@@ -1,4 +1,3 @@
-pub mod address_lookup_cache;
 pub mod bonding_curve;
 pub mod fast_fn;
 pub mod fast_timing;
@@ -11,6 +10,7 @@ pub mod spl_token;
 pub mod spl_token_2022;
 pub mod subscription_handle;
 pub mod types;
+pub mod address_lookup;
 
 pub use gas_fee_strategy::*;
 pub use types::*;