SnowflakeSqlApiOperator - Change the base class

[utkarsharma2]

Since SnowflakeOperator will be deprecated, changed the SnowflakeSqlApiOperator base class to SQLExecuteQueryOperator.

cc: @eladkal

[eladkal]

wouldn't it be easier to change the operator interface to have just hook_params rather than warehouse/database/etc..?

[utkarsharma2]

@eladkal We can do that, but I think it's better in the current condition for two reasons IMO.

1. Interface is aligned with the interface of SnowflakeOperator, which I think users already are used to.
2. Exposing hook_params to users would require them to know what a hook is(just the terminology), which I think is not required if they want to use the operator. Also, a user who is just trying to connect to Snowflake would be more familiar with the warehouse/database so they should be exposed as is.

But if you strongly feel we should directly expose hook_params I'm happy to make that change :)

[eladkal]

But if you strongly feel we should directly expose hook_params I'm happy to make that change :)

No strong opinion. We can leave it as is.