Update pom.xml to 1.0.0

Author: paolocappelletti

libevm/pom.xml

@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>io.horizen</groupId>
   <artifactId>libevm</artifactId>
-  <version>1.0.0-SNAPSHOT</version>
+  <version>1.0.0</version>
   <name>${project.groupId}:${project.artifactId}</name>
   <description>This library provides access to a standalone version of the go-ethereum EVM and its state storage layer StateDB and underlying LevelDB.</description>
   <url>https://github.com/${project.github.organization}/${project.artifactId}</url>