AVRO-2819:Add BigInteger and BigDecimal support for JacksonUtils

[zeshuai007]

this change is relatively small, so I didn't submit a issue in jira.
It allows JacksonUtils.toJsonNode(Object datum) receive type BigInteger and BigDecimal.

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-2819
  • In case you are adding a dependency, check if the license complies with the ASF 3rd Party License Policy.

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  3. Subject does not end with a period
  4. Subject uses the imperative mood ("add", not "adding")
  5. Body wraps at 72 characters
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  • All the public functions and the classes in the PR contain Javadoc that explain what it does

[zeshuai007]

Hi,

The CI failure of this PR has nothing to do with the modification of the lang/java package.
Error message:

Resolving dependencies...
rubocop-0.82.0 requires ruby version >= 2.4.0, which is incompatible with the
current version, ruby 2.3.3p222
The command '/bin/sh -c bundle install --gemfile=/tmp/Gemfile' returned a non-zero code: 5

[Fokko]

@zeshuai007 This looks good, can you create a ticket in Jira? We use this to generate changelogs.

[zeshuai007]

Thanks for the review and approval, a ticket has been created in Jira.

[Fokko]

Thanks @zeshuai007