uvm:8.3.4 overloading driver to implement all test cases

Using factory in 1.driver allows you to implement all of your test cases, but this is not recommended:

1) The production of data is in driver, back to the beginning, equivalent to regression.

2) Sometimes sequence is more convenient than driver.

3) sequence can start another sequence.

4) Use virtual sequence to coordinate and synchronize the generation of different incentives.

Only the combination of driver and sequence is the most reasonable.

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uvm:8.3.4 overloading driver to implement all test cases