Replace references to maven with references to gradle

[MysterAitch]

Oops, I missed a couple of references to maven in the source code when creating the sample project (mostly copy/paste from the maven sample 😉 )

• CodeGenerationUtils.mavenModuleRoot (should be replaced with Util.gradleModuleRoot)

javaparser-gradle-sample/src/main/java/com/yourorganization/maven_sample/LogicPositivizer.java

Lines 58 to 63 in f004561

	// This saves all the files we just read to an output directory.
	sourceRoot.saveAll(
	// The path of the Maven module/project which contains the LogicPositivizer class.
	CodeGenerationUtils.mavenModuleRoot(LogicPositivizer.class)
	// appended with a path to "output"
	.resolve(Paths.get("output")));

• the package is still maven_sample (rather than `gradle_sample')

javaparser-gradle-sample/src/main/java/com/yourorganization/maven_sample/LogicPositivizer.java

Line 1 in f004561

package com.yourorganization.maven_sample;