feat: initial TychoRouter skeleton

- remappings.txt is used for more elegant imports
- decided not to include all helper methods in skeleton - just main swap method. They are properly documented in the jira tasks.
- add filter-paths to slither to exclude submodules, otherwise we will get slither warnings about permit2 and open-zeppelin using different solidity versions:

```
	- Version constraint ^0.8.20 is used by:
		-^0.8.20 (lib/openzeppelin-contracts/contracts/access/AccessControl.sol#4)
		-^0.8.20 (lib/openzeppelin-contracts/contracts/access/IAccessControl.sol#4)
		-^0.8.20 (lib/openzeppelin-contracts/contracts/utils/Context.sol#4)
		-^0.8.20 (lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol#4)
		-^0.8.20 (lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol#4)
	- Version constraint ^0.8.0 is used by:
		-^0.8.0 (lib/permit2/src/interfaces/IAllowanceTransfer.sol#2)
		-^0.8.0 (lib/permit2/src/interfaces/IEIP712.sol#2)
	- Version constraint ^0.8.28 is used by:
```

foundry/test/TychoRouter.t.sol

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.28;
+
+import {Test, console} from "forge-std/Test.sol";
+import {TychoRouter} from "@src/TychoRouter.sol";
+
+contract TychoRouterTest is Test {
+    TychoRouter public tychoRouter;
+
+    function setupTychoRouter() public {
+        address permit2Address =
+            address(0x000000000022D473030F116dDEE9F6B43aC78BA3);
+        tychoRouter = new TychoRouter(permit2Address);
+    }
+
+    function testSetupTychoRouter() public {
+        setupTychoRouter();
+    }
+}