Support CREATE OR REPLACE TABLE

[alamb]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
DataFusion already supports CREATE TABLE AS SELECT

When working with tables it is nice to be able to replace them when they already exist

Describe the solution you'd like

I would like the following SQL to run rather than produce an error:

❯ CREATE TABLE valuetable AS VALUES(1,'HELLO'),(12,'DATAFUSION');
+---------+------------+
| column1 | column2    |
+---------+------------+
| 1       | HELLO      |
| 12      | DATAFUSION |
+---------+------------+
2 rows in set. Query took 0.016 seconds.
❯ CREATE OR REPLACE TABLE valuetable AS VALUES(1,'HELLO THERE');
Execution("Table '\"valuetable\"' already exists")

The result should be that valuetable now contains a single row 👍

+---------+------------+
| column1 | column2    |
+---------+------------+
| 1       | HELLO THERE      |

[HuSen8891]

@alamb please review the patch/pull request