feat(substreams): add substreams for Uniswap v2 and v3

substreams/ethereum-uniswap-v3/src/modules/mod.rs

@@ -0,0 +1,18 @@
+pub use map_pool_created::map_pools_created;
+pub use map_pool_events::map_pool_events;
+pub use store_pools::store_pools;
+
+#[path = "1_map_pool_created.rs"]
+mod map_pool_created;
+
+#[path = "2_store_pools.rs"]
+mod store_pools;
+
+#[path = "3_map_balance_changes.rs"]
+mod map_balance_changes;
+
+#[path = "4_store_pools_balances.rs"]
+mod store_pools_balances;
+
+#[path = "5_map_pool_events.rs"]
+mod map_pool_events;