remove Model, IntegrationResponse and RouteResponse resources (#28)

Description of changes:
* ignore Model, IntegrationResponse and RouteResponse resources
* these resources are not supported for HTTP APIs. These resources can be added when apigatewayv2 controller adds support for WebSocket APIs
* Leaving non-usable and non-tested resources is not a best practice so ignoring them for now.
* Updated README.md and olmconfig.yaml with necessary details

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

Author: vijtrip2

README.md

@@ -7,8 +7,8 @@ Please [log issues][ack-issues] and feedback on the main AWS Controllers for
 Kubernetes Github project.
 
 ```
-NOTE: Currently APIMapping and DomainName resource are not supported.
-These resource will be added in future releases.
+NOTE: Currently only HTTP APIs are supported. WebSocket API support will be added soon.
+For HTTP APIs, DomainName and APIMapping resource support will be added soon.
 ```
 
 [ack-issues]: https://github.com/aws/aws-controllers-k8s/issues

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,13 +1,13 @@
 ack_generate_info:
-  build_date: "2022-03-02T17:59:56Z"
-  build_hash: b4d75df08c236e291a24e18c612b9df6cc5c0ccb
+  build_date: "2022-03-02T21:33:14Z"
+  build_hash: ade2429bb444ab635916395ea5773d141ba135e1
   go_version: go1.17.5
-  version: v0.17.1
-api_directory_checksum: feab12a6584c3a4a21706c7cc4791599c6afafc7
+  version: v0.17.2
+api_directory_checksum: b98cf468e3704663b922b51293db3aab00e16cbc
 api_version: v1alpha1
 aws_sdk_go_version: v1.42.0
 generator_config_info:
-  file_checksum: a1e3214036d08cd3443d3de3d6398a868c2131b7
+  file_checksum: 851121fe11436e5c8584a366cb634e2dcdc7766a
   original_file_name: generator.yaml
 last_modification:
   reason: API generation

apis/v1alpha1/generator.yaml

@@ -1,7 +1,15 @@
 ignore:
   resource_names:
+    # DomainName is ignored due to lack of Public DNS setup in e2e testing
     - DomainName
+    # ApiMapping is ignored due to lack of Public DNS setup in e2e testing
     - ApiMapping
+    # Model is not supported for HTTP APIs. Remove when adding support for WebSocket APIs
+    - Model
+    # IntegrationResponse is not supported for HTTP APIs. Remove when adding support for WebSocket APIs
+    - IntegrationResponse
+    # RouteResponse is not supported for HTTP APIs. Remove when adding support for WebSocket APIs
+    - RouteResponse
 resources:
   Api:
     fields: