Added support for windows

Author: saby1101

build.gradle

@@ -4,7 +4,7 @@ plugins {
 }
 
 group 'lemonjava'
-version '1.0-SNAPSHOT'
+version '2.0-SNAPSHOT'
 
 sourceCompatibility = 1.8
 

src/main/java/org/lemonjava/Library.java

@@ -32,8 +32,8 @@ public class Library {
             suffix = "-linux-amd64.so";
         } else if (arch64 && osx) {
             suffix = "-osx-amd64.dylib";
-        } else if (windows) {
-            throw new IllegalArgumentException("Windows not supported!");
+        } else if (arch64 && windows) {
+            suffix = "-win-amd64.dll";
         } else {
             throw new IllegalStateException("Couldn't find lib for lemonc");
         }