Add constructor for GetQuery

RSND/Core/Querying/Queries/GetQuery.cs

@@ -2,6 +2,13 @@
 
 public class GetQuery : IQuery
 {
+    public GetQuery(string table, string select, string where)
+    {
+        Table = table;
+        Select = select;
+        Where = where;
+    }
+
     public string Table { get; set; }
     public string Select { get; set; }
     public string Where { get; set; }