add github package repo

build.gradle

@@ -1,2 +0,0 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-

lib/build.gradle

@@ -24,7 +24,7 @@ buildscript {
 
 apply plugin: 'kotlin'
 apply plugin: 'java-library'
-
+apply plugin: 'maven-publish'
 
 repositories {
     // Use JCenter for resolving dependencies.
@@ -61,3 +61,23 @@ test {
     useJUnitPlatform()
 }
 
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+
+publishing {
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = uri("https://maven.pkg.github.com/tutipay/java-sdk")
+            credentials {
+                username = project.findProperty("gpr.user") ?: System.getenv("USERNAME")
+                password = project.findProperty("gpr.key") ?: System.getenv("TOKEN")
+            }
+        }
+    }
+    publications {
+        gpr(MavenPublication) {
+            from(components.java)
+        }
+    }
+}