Add counterfactual deployment test case

[lalexgap]

⚠️ Based on #110 This adds a test case to test the Entrypoint contract deploying our SCBridgeWallet on demand using our contract factory. Instead of deploying the SCBridgeWallet before submitting the UserOperation, the test specifies the initcode which points to our factory. When the EntryPoint receives the UserOperation it checks the precomputed address and deploys the SCBridgeWallet for us.

TODO:

• [ ] Update our clients to use this initCode and update our deploy script to just prefund the SCBridgeWallet addresses instead of deploying to them.

[lalexgap]

Hmm, I thought I had this working but it looks like the test is still failing.

[lalexgap]

Hmm, I thought I had this working but it looks like the test is still failing.

Ah, it looks like I accidentally deleted a line when adding a helper, it has now been resolved.

[NiloCK]

Really great - thanks @lalexgap.