Add SQLInsertRowsOperator in common.sql provider

[dabla]

As already discussed previously on the devlist this PR adds the SQLInsertRowsOperator in the common sql provider. Main advantage of having such operators is that you don't need a PythonOperator or a task decorated python method in your DAG to allow inserting data from an XCom, you just call the operator, which allows you to keep your DAG clean and readable.

An example on how to use the operator:

insert_rows = SQLInsertRowsOperator(
        task_id="insert_rows",
        table_name="actors",
        columns=[
            "name",
            "firstname",
            "age",
        ],
        rows=[
            ("Stallone", "Sylvester", 78),
            ("Statham", "Jason", 57),
            ("Li", "Jet", 61),
            ("Lundgren", "Dolph", 66),
            ("Norris", "Chuck", 84),
        ],
        preoperator=[
            """
            CREATE TABLE IF NOT EXISTS actors (
                index BIGINT PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
                name TEXT NOT NULL,
                firstname TEXT NOT NULL,
                age BIGINT NOT NULL
            );
            """,
            "TRUNCATE TABLE actors;",
        ],
        postoperator="DROP TABLE IF EXISTS actors;",
        insert_args={
            "commit_every": 1000,
            "autocommit": False,
            "executemany": True,
            "fast_executemany": True,
        },
    )

It also offers some convienience methods like rows_processor, preoperator (like with GenericTransfer) and postoperator. It accepts the same parameters as the insert_rows method from the DbApiHook.

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[potiuk]

Tests failing :)

[potiuk]

Looks good. Just static check should be fixed.

[dabla]

Looks good. Just static check should be fixed.

Fixed