For Insert.IntoTable, adds a new Rows method that allows inserting multiple records from a single method call, such as from an instance of IEnumerable<object>. The implementation is done with params for convenient use. Two Rows method were added: for anonymous types and for IDictionary<string, object>, matching the implementation of the existing Row methods.

Rather than using:

foreach (var record in records)
{
    Insert.IntoTable("myTable").Row(record);
}

The code can be simplified to:

Insert.IntoTable("myTable").Rows(records);

Because of params, this also allows developers that are making individual record calls:

Insert.IntoTable("myTable")
    .Row(new { Data1 = "Row1Data1", Data2 = "Row1Data2" })
    .Row(new { Data1 = "Row2Data1", Data2 = "Row2Data2" });

to instead use a single Rows call:

Insert.IntoTable("myTable")
    .Rows(
        new { Data1 = "Row1Data1", Data2 = "Row1Data2" },
        new { Data1 = "Row2Data1", Data2 = "Row2Data2" }
    );

This completes #2054.

Notes:
Regarding the data method argument on the Row method: because data is ambiguous regarding singular and plural use, the argument has been renamed to record/records.

Fixes #2054