[SFN] Enhancements for Intrinsic Function StringSplit #9749
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Motivation
For the current implementation of the SFN interpreter, the Intrinsic Functions States.StringSplit does not filter for non-empty strings after computing the parts. This PR addresses such behaviour by filtering for empty string results.
Closes: #9742
Changes
Added empty string filtering after computing the split parts in the implementation for States.StringSplit, and a number of relevant test cases