feat: make the conditional order factory case insensitive

[anxolin]

We are observing some issues handling some TWAP orders in the logs.

According to the log, this message should only be shown for legacy polling, meaning that the order was not recognised as a known one, and instead of using the SDK polling for Conditional Orders, its using the generic polling of the Watch Tower.

The check if the order is a known one is based on the ConditionalOrderFactory who instanciates conditional orders based on their handler.

I can see in the error the handler is TWAP, but it was not instantiated using the SDK which I believe it means the handler was not recognised.

This PR makes the ConditionalOrderFactory to not be case sensitive, because otherwise it depends on the casing of the handler if its recognised or not. With this, the legacy polling should not be used for TWAP.

After this PR

After this PR we need to generate a new SDK version and make use of it in Watch Tower

[coveralls]

coverage: 78.071% (-0.2%) from 78.23%
when pulling d8e9e4a on make-conditional-order-factory-case-insensitive
into 5ad85a1 on main.