Set up Maven Central publishing

build.gradle

@@ -14,6 +14,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:4.2.1'
+        classpath 'com.vanniktech:gradle-maven-publish-plugin:0.15.1'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }