feat: new artifact for sdk-platform-java configs. (#2315)

* feat: introduce new artifact for sdk-platform-java configs.

pom.xml

@@ -23,6 +23,7 @@
     <module>java-core</module>
     <module>gapic-generator-java-bom</module>
     <module>java-shared-dependencies</module>
+    <module>sdk-platform-java-config</module>
   </modules>
   <!-- Do not deploy the aggregator POM -->
   <build>

sdk-platform-java-config/pom.xml

@@ -0,0 +1,23 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.google.cloud</groupId>
+    <artifactId>sdk-platform-java-config</artifactId>
+    <packaging>pom</packaging>
+    <version>3.20.1-SNAPSHOT</version> <!-- {x-version-update:google-cloud-shared-dependencies:current} -->
+    <name>SDK Platform For Java Configurations</name>
+    <description>
+        Shared build configuration for Google Cloud Java libraries.
+    </description>
+
+    <parent>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-shared-config</artifactId>
+        <version>1.7.1</version>
+    </parent>
+
+    <properties>
+        <checkstyle.skip>true</checkstyle.skip>
+        <google-cloud-shared-dependencies.version>3.20.1-SNAPSHOT</google-cloud-shared-dependencies.version> <!-- {x-version-update:google-cloud-shared-dependencies:current} -->
+    </properties>
+</project>