Add trigger handler for storage events (aws-amplify#1027)

* feat: add triggers to storage events

* add API.md

* clean up

* add changeset

* cleanup

* remove unused imports

* cleanup

* update API.md

* Update packages/backend-storage/src/function_instance_provider.ts

Co-authored-by: Edward Foyle <foyleef@amazon.com>

* check for logical IDs

* bump aws-cdk-lib peer-dependency to 2.127.0

* use S3EventSourceV2

* fix

* added changeset

* Update .changeset/five-fireants-shout.md

* bump aws-cdk to 2.127.0

* bump aws-cdk to 2.127.0

---------

Co-authored-by: Edward Foyle <foyleef@amazon.com>

.changeset/five-fireants-shout.md

@@ -0,0 +1,14 @@
+---
+'@aws-amplify/backend-platform-test-stubs': patch
+'@aws-amplify/backend-output-storage': patch
+'@aws-amplify/integration-tests': patch
+'@aws-amplify/backend-function': patch
+'@aws-amplify/backend-storage': patch
+'@aws-amplify/auth-construct-alpha': patch
+'@aws-amplify/backend-auth': patch
+'@aws-amplify/backend-data': patch
+'@aws-amplify/plugin-types': patch
+'@aws-amplify/backend': patch
+---
+
+bump aws-cdk-lib to 2.127.0

.changeset/khaki-panthers-grin.md

@@ -0,0 +1,6 @@
+---
+'@aws-amplify/backend-storage': minor
+'@aws-amplify/integration-tests': patch
+---
+
+adding triggers to storage events