adding new functionality for mocks

- working through insert logic
- ideally return struct with 'good' fields
- also return list of args to prevent relooping

driver.go

@@ -0,0 +1,17 @@
+package lazy
+
+//driver.Result does not play well with creation, overriding it here so we can return the results without
+//requiring sqlmock
+type sqlResult struct {
+	insertID     int64
+	rowsAffected int64
+	err          error
+}
+
+func (r *sqlResult) LastInsertId() (int64, error) {
+	return r.insertID, r.err
+}
+
+func (r *sqlResult) RowsAffected() (int64, error) {
+	return r.rowsAffected, r.err
+}