feat: Create base application files + openAPI spec

Resolves #1 (closed)

Resolves #2 (closed)

config/application/secret.properties.sample

+quarkus.oidc-client.auth-server-url=$KEYCLOAK_FOUNDATIONDB_REALM_URL
+quarkus.oidc-client.client-id=$OPENVSXAPI_OIDCCLIENT_CLIENT_ID
+quarkus.oidc-client.credentials.secret=$OPENVSXAPI_OIDCCLIENT_CLIENT_CREDENTIALS
\ No newline at end of file