Rename JenkinsFile to BuildFile to prevent jenkins building the forks

BuildFile

@@ -0,0 +1,15 @@
+node {
+   stage 'Checkout'
+
+   checkout scm
+
+   stage 'Build'
+
+   sh "rm -rf build/libs/"
+   sh "chmod +x gradlew"
+   sh "./gradlew build --refresh-dependencies"
+
+   stage "Archive artifacts"
+
+   sh "./gradlew publish"
+}