add host sim (#132)

* wip: add host sim

* fix: add host evm and fix fill detection

* fix: host fills in trevm

* opt: avoid making mut before we have to

* fix: fill state candidates

* chore: misc cleanup

* wip: test

* fix: setup dbs

* fix: set db properly revm is a pain sometimes

* fix: count host gas

* test: add test for too much host gas

* tests: more of them!

* fix: accept host cache

* test: add test for host cache propagation between bundles

Author: prestwich

crates/bundle/src/call/driver.rs

@@ -184,7 +184,7 @@ where
             self.response.bundle_hash = self.bundle.bundle_hash();
 
             // Taking these clears the order detector
-            let (orders, fills) =
+            let (fills, orders) =
                 trevm.inner_mut_unchecked().inspector.as_mut_detector().take_aggregates();
             self.response.orders = orders;
             self.response.fills = fills;