CAMEL-14744: fix camel-salesforce lazy-login

[MaartenTutak]

This PR is an attempt to fix the lazy-login bug in the camel-salesforce component, which was logged in CAMEL-14744.

I would like some feedback on the chosen approach :

1. Passing around SalesforceLoginConfig instead of a boolean value indicating lazyLogin
2. "JIT" login in the SalesforceProducer#process method

This fix was tested against an actual Salesforce instance, via the DefaultRestClient implementation. I am unable to verify the other ApiClient implementations and things like the SubscriptionHelper, AbstractSalesforceMojo.

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[omarsmak]

Thank you @MaartenTutak for the PR! Overall LGTM, just minor wildcard imports. Perhaps others can take a second look as well

[omarsmak]

The wildcard import shouldn't happen, can you please re-import individual packages

[davsclaus]

LGTM

@zregvart if you are around wonder if you could take 2 min to take a look.