added newList and getAllList

wrapper/src/main/java/wekan/wrapper/api/ListService.java

@@ -0,0 +1,17 @@
+package wekan.wrapper.api;
+
+import retrofit2.Call;
+import retrofit2.http.*;
+import wekan.wrapper.entity.WList;
+
+import java.util.List;
+
+
+public interface ListService {
+    @GET("/api/boards/{board}/lists")
+    Call<List<WList>> getAllList(@Path("board") String boardId);
+
+    @POST("/api/boards/{board}/lists")
+    Call<WList> newList(@Path("board") String board, @Body String title);
+
+}

wrapper/src/main/java/wekan/wrapper/entity/WList.java

@@ -0,0 +1,17 @@
+package wekan.wrapper.entity;
+
+import com.google.gson.annotations.SerializedName;
+
+public class WList {
+    @SerializedName("_id")
+    private String id;
+    private String title;
+
+    @Override
+    public String toString() {
+        return "WList{" +
+                "id='" + id + '\'' +
+                ", title='" + title + '\'' +
+                '}';
+    }
+}