Add EventSourceMapping resource (#9)

Issue aws-controllers-k8s/community#238

Description of changes:

- Adds create, delete and update operations for `EventSourceMapping`
resource in the AWS Lambda API.
- Adds end2end tests to deploy lambda event source mappings using
ACK controller.

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Author: a-hilaly

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,13 +1,13 @@
 ack_generate_info:
-  build_date: "2021-11-16T12:37:54Z"
-  build_hash: 6ce1a672eabd3908bdaa4ace356e1b58ee3e80ba
+  build_date: "2021-11-16T16:25:06Z"
+  build_hash: f8366f06104baf96f8fe2d1b086ea0ac632318de
   go_version: go1.16.4
   version: v0.15.2
-api_directory_checksum: 9edcdeb5504334fb9dc37860640203bf978f2781
+api_directory_checksum: 84d93710fb0b89a7ed99b0923611297242a55a99
 api_version: v1alpha1
 aws_sdk_go_version: v1.40.28
 generator_config_info:
-  file_checksum: b80756602eb2c154d469f6192b8de9810f5acd10
+  file_checksum: 1bc55e6356761b977771bdc242b2ddc5bc0e5657
   original_file_name: generator.yaml
 last_modification:
   reason: API generation

apis/v1alpha1/event_source_mapping.go

@@ -3,7 +3,7 @@ ignore:
     # Function
     # Alias
     # CodeSigningConfig
-    - EventSourceMapping
+    # EventSourceMapping
   shape_names:
     - LayerList
 resources:
@@ -31,4 +31,14 @@ resources:
       FunctionName:
         is_required: true
       FunctionVersion:
+        is_required: true
+  CodeSigningConfig:
+    fields:
+      AllowedPublishers:
+        is_required: true
+  EventSourceMapping:
+    fields:
+      UUID:
+        is_primary_key: true
+      FunctionName:
         is_required: true