Add Libwebsockets to our CI (#2290)

### Issues:
`CryptoAlg-2992`

### Description of changes: 
Add libwebsockets master to our CI along with a patch file.

The patch file simplifies many of the ifdefs in libwebsockets code that
were previously repetitive and convoluted by creating helped
macros/simplifying logic. I have tested this variant of libwebsockets
locally with AWS-LC and OpenSSL, WolfSSL remains pending.

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

Author: smittals2

tests/ci/cdk/cdk/codebuild/github_ci_integration_omnibus.yaml

@@ -352,6 +352,16 @@ batch:
         variables:
           AWS_LC_CI_TARGET: "tests/ci/integration/run_ibmtpm_integration.sh"
 
+    - identifier: libwebsockets_integration_x86_64
+      buildspec: tests/ci/codebuild/common/run_simple_target.yml
+      env:
+        type: LINUX_CONTAINER
+        privileged-mode: false
+        compute-type: BUILD_GENERAL1_MEDIUM
+        image: 620771051181.dkr.ecr.us-west-2.amazonaws.com/aws-lc-docker-images-linux-x86:ubuntu-22.04_gcc-12x_integration_latest
+        variables:
+          AWS_LC_CI_TARGET: "tests/ci/integration/run_libwebsockets_integration.sh"
+
     - identifier: grpc_integration_x86_64
       buildspec: tests/ci/codebuild/common/run_ipv6_target.yml
       env: