📣 borb release 2.0.19

This release is a small feature release.

• Forms have been extended with PushButton, which enables you to place a PushButton in a PDF and tie an action to it.

• Tests for PushButton have been added to the repository.

• Examples for PushButton have been added to the examples repository.

• A test was added for issue #69 on GitHub, which deals with adding 500 Heading objects to a PDF.
  Turns out recursive parsing has its limits 😵‍💫

• A small fix was introduced for issue #71 on GitHub

• Annotation now is its own proper class, each seperate Annotation has its own subclass. This makes the Page class a lot lighter (where the code previously resided).

• Document level JavaScript is now supported, examples and tests have been added to the corresponding repositories.

• Both embedded files and JavaScript use the concept of a NameTree which is now its own separate class.

In order to make sure your code runs smoothly, check your imports when upgrading to the latest version.