RFR: 8347911: Limit the length of inflated text chunks

[Jayathirth D V]

In PNG we have non-essential compressed text chunks zTXt and iTXt, which can consume considerable amount of memory when they contain large amount of compressed data.

We should restrict the amount of text data we want to decompress from these text chunks. This PR adds limit of 256k bytes of inflated data from each of zTXt/iTXt chunks.

There is no regression test because we need PNG file with large amount of compressed data to hit the limit.

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Commit messages:
 - 8347911: Limit the length of inflated text chunks

Changes: https://git.openjdk.org/jdk/pull/23148/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23148&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347911
  Stats: 3 lines in 1 file changed: 1 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/23148.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23148/head:pull/23148

PR: https://git.openjdk.org/jdk/pull/23148