Added call that copies a chart from a workspace to another workspace

src/main/java/seatsio/charts/Charts.java

@@ -153,6 +153,14 @@ public Chart copyToWorkspace(String chartKey, String toWorkspaceKey) {
         return gson().fromJson(response, Chart.class);
     }
 
+    public Chart copyToWorkspace(String chartKey, String fromWorkspaceKey, String toWorkspaceKey) {
+        String response = unirest.stringResponse(UnirestWrapper.post(baseUrl + "/charts/{chartKey}/version/published/actions/copy/from/{fromWorkspaceKey}/to/{toWorkspaceKey}")
+                .routeParam("chartKey", chartKey)
+                .routeParam("fromWorkspaceKey", fromWorkspaceKey)
+                .routeParam("toWorkspaceKey", toWorkspaceKey));
+        return gson().fromJson(response, Chart.class);
+    }
+
     public void addTag(String key, String tag) {
         unirest.stringResponse(UnirestWrapper.post(baseUrl + "/charts/{key}/tags/{tag}")
                 .routeParam("key", key)

src/test/java/seatsio/charts/CopyChartFromWorkspaceToTest.java

@@ -0,0 +1,29 @@
+package seatsio.charts;
+
+import org.junit.jupiter.api.Test;
+import seatsio.SeatsioClient;
+import seatsio.SeatsioClientTest;
+import seatsio.workspaces.Workspace;
+
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class CopyChartFromWorkspaceToTest extends SeatsioClientTest {
+
+    @Test
+    public void test() {
+        Chart chart = client.charts.create("my chart", "BOOTHS");
+        Workspace toWorkspace = client.workspaces.create("my ws");
+
+        Chart copiedChart = client.charts.copyToWorkspace(chart.key, workspace.key, toWorkspace.key);
+
+        SeatsioClient workspaceClient = new SeatsioClient(toWorkspace.secretKey, null, apiUrl());
+        assertThat(copiedChart.name).isEqualTo("my chart");
+        Chart retrievedChart = workspaceClient.charts.retrieve(copiedChart.key);
+        assertThat(retrievedChart.name).isEqualTo("my chart");
+        Map<?, ?> drawing = workspaceClient.charts.retrievePublishedVersion(copiedChart.key);
+        assertThat(drawing.get("venueType")).isEqualTo("BOOTHS");
+    }
+
+}