Database builder batch insert same fields control

[zlodes]

Hi!

There is an ability to batch insert of array data using Database Builder.

And it sorts before insert to make values or consistent to keys definition in INSERT clause.
But now it allows to batch insert of several different size or keys array. Example:

$data = [
    ['foo' => 'bar'],
    ['bar' => 'baz'],
    ['foo' => 'bar', 'bar' => 'baz'],
];

DB::table('foo')->insert($data);

It causes error like this (SQL Server example):

SQLSTATE[42000]: [Microsoft][ODBC Driver 17 for SQL Server][SQL Server] 
The number of columns for each row in a table value constructor must be the same.

I think, the insert method should throw an exception before trying to save it using the DB Driver.