[Java] Implement a function to retrieve reference buffers in StringView

[vibhatha]

Describe the enhancement requested

At the moment in the StringView implementation, public ArrowBuf[] getBuffers(boolean clear) function only returns the offset, validity and value buffers. But for recreating views entirely and support related features it would be better to introduce additional function or improve the existing function to return the view buffers.

Component(s)

Java

[lidavidm]

Issue resolved by pull request 41796
#41796