Revert changes to API.

Author: nedtwigg

lib/src/main/java/com/diffplug/spotless/java/GoogleJavaFormatStep.java

@@ -35,7 +35,7 @@ private GoogleJavaFormatStep() {}
 	private static final boolean DEFAULT_REORDER_IMPORTS = false;
 	private static final boolean DEFAULT_FORMAT_JAVADOC = true;
 	static final String NAME = "google-java-format";
-	static final String MAVEN_COORDINATE = "com.google.googlejavaformat:google-java-format";
+	public static final String MAVEN_COORDINATE = "com.google.googlejavaformat:google-java-format";
 
 	/** Creates a step which formats everything - code, import order, and unused imports. */
 	public static FormatterStep create(Provisioner provisioner) {

lib/src/main/java/com/diffplug/spotless/java/PalantirJavaFormatStep.java

@@ -29,7 +29,7 @@ private PalantirJavaFormatStep() {}
 
 	private static final String DEFAULT_STYLE = "PALANTIR";
 	private static final String NAME = "palantir-java-format";
-	private static final String MAVEN_COORDINATE = "com.palantir.javaformat:palantir-java-format:";
+	public static final String MAVEN_COORDINATE = "com.palantir.javaformat:palantir-java-format:";
 	private static final Jvm.Support<String> JVM_SUPPORT = Jvm.<String> support(NAME).add(8, "1.1.0").add(11, "2.28.0").add(21, "2.39.0");
 
 	/** Creates a step which formats everything - code, import order, and unused imports. */