Created gradle module and moved existing code to new one

extractor/build.gradle

@@ -0,0 +1,10 @@
+dependencies {
+    implementation project(':timeago-parser')
+
+    implementation 'com.grack:nanojson:1.1'
+    implementation 'org.jsoup:jsoup:1.9.2'
+    implementation 'org.mozilla:rhino:1.7.7.1'
+    implementation 'com.github.spotbugs:spotbugs-annotations:3.1.0'
+
+    testImplementation 'junit:junit:4.12'
+}