feat: Set swap executors and verifiers

- Moved the deployment method into a test template for organization
- Created skeletons of dispatcher contracts
- Added all possible test cases for thoroughness

foundry/test/Constants.sol

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.13;
+
+contract Constants {
+    address ADMIN = address(12395012351212343412541234); //admin=us
+    address BOB = address(123); //bob=someone!=us
+
+    // dummy contracts
+    address DUMMY = address(0x1234);
+}