Added deleteFromTable function

[Niharika0104]

Fixes #71
The deleteFromTable method now includes an optional select parameter.

• When the select parameter is provided, the method will delete data according to the specified select query.
• If the select parameter is not provided, the method will delete all data from the table while preserving the table structure (essentially executing the DELETE FROM table command).

[mindsdb-devops]

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1 out of 2 committers have signed the CLA.
✅ (Niharika0104)[https://github.com/Niharika0104]
❌ @mpacheco12
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