feat: lots of refactoring (file splitting

- `lib.rs` split into multiple files with `modules.rs` being the main entrypoint for substreams
- contract changes are tracked similiarly to ambient (generalized to use a store of tracked contracts)
- static attributes were pruned of the dynamic ones

substreams/ethereum-balancer/proto/tycho/evm/v1/common.proto

@@ -70,8 +70,13 @@ message ProtocolComponent {
   ChangeType change = 5;
 }
 
-message ProtocolComponents {
-  repeated ProtocolComponent components = 1;
+message TransactionProtocolComponents {
+  Transaction tx = 1;
+  repeated ProtocolComponent components = 2;
+}
+
+message GroupedTransactionProtocolComponents {
+  repeated TransactionProtocolComponents tx_components = 1;
 }
 
 // A struct for following the changes of Total Value Locked (TVL) of a protocol component.