feat: [analyticshub] new module for analyticshub

[suztomo]

• feat: initial generation of analyticshub
• build: add the analyticshub module to monorepo
• product docs and description

[suztomo]

unmanaged versions check failed.

./generation/check_non_release_please_versions.sh
11:    <version>1.5.3</version>
Found version declaration(s) without x-version-update in: ./java-analyticshub/google-cloud-analyticshub-bom/pom.xml
---------------------------------------------------------
87:      <version>[4](https://github.com/googleapis/google-cloud-java/actions/runs/3238060788/jobs/5305850308#step:3:5).13.2</version>
Found version declaration(s) without x-version-update in: ./java-analyticshub/google-cloud-analyticshub/pom.xml
---------------------------------------------------------
17:    <version>1.[5](https://github.com/googleapis/google-cloud-java/actions/runs/3238060788/jobs/5305850308#step:3:6).3</version>
88:        <version>3.0.4</version>
124:        <version>3.3.0</version>
151:        <version>3.4.0</version>
Found version declaration(s) without x-version-update in: ./java-analyticshub/pom.xml
---------------------------------------------------------
FOUND 3 VIOLATIONS!

Running

suztomo@suztomo:~/google-cloud-java/generation/new_client/workspace/monorepo$ sh generation/consolidate_config.sh