Implement multicall (#314)

* Add batchMintAndRegisterIpAssetWithPilTerms method

* Add batchRegisterDerivative method

* Enhance batchMintAndRegisterIpAssetWithPilTerms including unit tests and annotation

* Add batchMintAndRegisterIpAndMakeDerivative method

* Add batch register method

* Fix issue about Invalid signature

* Refactor code

* Add unit tests

* Fix unit test

* Export getSignature method

* Add batchRegisterWithIpMetadata method

* Enhance code

* Refactor multicall about protocol core

* Remove integration test in command

* Refactor getDeadline method

* Bump up sdk to 1.2.0-rc.2

packages/core-sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@story-protocol/core-sdk",
-  "version": "1.2.0-rc.1",
+  "version": "1.2.0-rc.2",
   "description": "Story Protocol Core SDK",
   "main": "dist/story-protocol-core-sdk.cjs.js",
   "module": "dist/story-protocol-core-sdk.esm.js",