Moved most of the message handling to other classes.

I'm finding that this code is being used multiple times, so inheritance seems to be warranted.

addonInter/build.gradle

@@ -31,6 +31,8 @@ dependencies {
 
     implementation 'com.google.code.gson:gson:2.8.7'
 
+    implementation project(":browserCommands")
+
     // Declare the dependency for your favourite test framework you want to use in your tests.
     // TestNG is also supported by the Gradle Test task. Just change the
     // testCompile dependency to testCompile 'org.testng:testng:6.8.1' and add