Implement API Methods and helper Functions

[fabianmichael]

Using Kirby-Typography should not be limited to Kirbytext or by utilizing the Smartypants component. In Some cases, you want to use different settings for different fields and/or in different sections of a template (see #7).

Kirby-Typography should provide methods utilizing the plugin directly:

typography($text, $settings = []);

This should always be based a language’s default settings with the possibility to override them using the $settings parameter. It could also be possible to define presets in the config file, which can then be used in templates by providing a string instead of an array for $settings.