solution: initial version

gradle.properties

@@ -0,0 +1,21 @@
+# Languages
+groovyVersion=2.5.5
+kotlinVersion=1.3.11
+
+# Main Libs
+slf4jVersion=1.7.25
+jacksonVersion=2.9.8
+grpcVersion=1.20.0
+protocVersion=3.7.1
+protobufVersion=3.7.1
+
+# Core
+springBootVersion=2.1.4.RELEASE
+springVersion=5.1.4.RELEASE
+
+# Our Libs
+etherjarVersion=0.6.0
+
+# Testing
+spockVersion=1.2-groovy-2.5
+