Added method to apply delta SQL script including asynchronously

Delta.cs

@@ -2,6 +2,7 @@
 using System.Data;
 using System.Linq;
 using System.Text;
+using System.Threading.Tasks;
 
 namespace DbTools {
     public class Delta {
@@ -32,6 +33,21 @@ namespace DbTools {
             return BuildDelta(db1, db2, removeUnusedTables, removeUnusedColumns, removeUnusedTriggers, removeUnusedIndexes);
         }
 
+        public async Task<bool> ApplyDeltaAsync(IDbConnection cn, string sql) {
+            return await Task.Run(() => {
+                return ApplyDelta(cn, sql);
+            });
+        }
+
+        public bool ApplyDelta(IDbConnection cn, string sql) {
+            bool success = false;
+            using (var cmd = cn.CreateCommand()) {
+                cmd.CommandText = sql;
+                success = cmd.ExecuteNonQuery() > 0;
+            }
+            return success;
+        }
+
         private string BuildDelta(Database db1, Database db2, bool removeUnusedTables, bool removeUnusedColumns, bool removeUnusedTriggers, bool removeUnusedIndexes) {
             StringBuilder sb = new StringBuilder();