override only mssql and sqlite QueryBuilder; throw an exception for composite in condition with a subquery

- do not allow boolean values for integer columns
- use native boolean type with boolean values
- removed workaround that turned out to be wrong when schema and values
  are used correctly. Workaround resulted from wrong usage of boolean
  values before.

fixes #4672

also fixed an issue with default value loading of bool columns.

fixes #3489, fixes #4085, fixes #3920
related to #4672

fixes #4654

Fixes #4644: Added `\yii\db\Schema::createColumnSchema()` to be able to customize column schema used

one method for fetching data and one for sending to db.

fixes #2287

fixes #422

$column->enumValues is set to array[0 =>''] even if $info['enum_values'] is null.
Gii generates always dropDownList in forms.

fixes #3578

fixes #3252

also improved unit tests for querybuilder buildLikeCondition

issue #3026

issue #2852