Release v2.5.5

Refactor: Migrate to parent POM and Central publishing

Refactor: Correct the data types of elements within Map<String, Objec…

…t> and List<Object>

Merge branch 'agreement' into 'master'

add impl notify of agreement

See merge request api-team/pingpp-java!25

Merge branch 'feature-refund-currency' into 'master'

修改: Refund 对象新增`currency` 字段

See merge request api-team/pingpp-java!23

Merge branch 'feature-request-options' into 'master'

Feature request options

See merge request api-team/pingpp-java!21

Royalty.createData() added

2.3.13 jar

version 2.3.12

version 2.3.11