AVRO-2547: Add bzip2 support to the Perl bindings

[sekikn]

Make sure you have checked all steps below.

Jira

• My PR addresses the following Avro Jira issues and references them in the PR title. For example, "AVRO-1234: My Avro PR"
  • https://issues.apache.org/jira/browse/AVRO-2547
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Tests

• My PR adds the following unit tests OR does not need testing for this extremely good reason:

I updated lang/perl/t/04_datafile.t to add a test for the bzip2 codec.

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[nandorKollar]

Tests failed, because this depends on #638

[sekikn]

Exactly, I'll rerun the CI once #638 is merged. Thanks for the comment!

[Fokko]

@sekikn can you rebase? :-)

[sekikn]

Sure, thanks for merging #638!

[nandorKollar]

LGTM