Support for IN operator in Db Module

#### What are you trying to achieve?
I wanted to check that `$I->dontSeeInDatabase` from a list of values. Instead of writing
```php
$I->dontSeeInDatabase('someTable', ['foo' => 'cond1']);
$I->dontSeeInDatabase('someTable', ['foo' => 'cond2']);
$I->dontSeeInDatabase('someTable', ['foo' => 'cond3']);
```
I ended up writing
```php
$I->dontSeeInDatabase('someTable', [
'foo' => ['cond1', 'cond2', 'cond3']
]);
```
hoping that it would generate the following query `SELECT count(*) FROM someTable WHERE foo IN ('cond1', 'cond2', 'cond3')` and assert that the result must be 0. However I ended up getting an exception, saying array-to-string conversion - obviously enough since this is not supported.

Do you think this is something good to have, or just bad test design on my part?

* Codeception version: 2.3.3

從 Db 模組中的 $I->dontSeeInDatabase 進入點開始，追蹤陣列條件如何轉換成查詢。重現回報的陣列值案例，接著加入對所要求 IN 行為的支援，並驗證產生的 assertion 將符合的資料列視為不存在。

由索引模型根據 Issue 內容生成。