Add changelog (#574)

Author: hpmellema

CHANGELOG.md

@@ -0,0 +1,15 @@
+# Change Log
+
+## 0.0.1 (02/06/2025)
+> [!WARNING]
+> This is a developer-preview release and may contain bugs. **No** guarantee is made about API stability. 
+> This release is not recommended for production use!
+
+### Features
+- Implemented Client, Server and Type codegen plugins.
+- Added Client event streaming support.
+- Added Client Auth support - sigv4, bearer auth, http basic auth.
+- Added JSON protocol support - restJson1, awsJson.
+- Added RPCV2 CBOR protocol support
+- Implemented Dynamic client that can load a Smithy model to call a service.
+- Added Smithy Lambda Endpoint wrapper to run generated server stubs in AWS Lambda