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GH-43320: [Java] fix for SchemaChangeRuntimeException transferring empty FixedSizeListVector (#43321)

### What changes are included in this PR?

When we create a FSLV through TransferImpl, we check to see if the source's element vector is a ZeroVector and, if not, we don't call addOrGetVector.

### Are these changes tested?

Yep - see TestFixedSizeListVector

### Are there any user-facing changes?

No
* GitHub Issue: #43320

Authored-by: James Henderson <james@jarohen.dev>
Signed-off-by: David Li <li.davidm96@gmail.com>