Feature: add DeckTape plugin

[neelabhg]

DeckTape is a PDF exporter for HTML presentation frameworks. It has many features and supports several HTML frameworks.

Adding a plugin for Cleaver to DeckTape could be one way to address #116. An advantage is that it will provide a consistent experience to users coming from other frameworks and to existing DeckTape users. It will also possibly enhance visibility for this project.

[adriens]

👍

[vibegui]

PR welcome! :)

[hhzl]

It seems that it is a matter of adding a cleaver plugin to the directory

https://github.com/astefanutti/decktape/tree/master/plugins

The plugins are about 40..70 LOC.