LoadOrNewConfig will attempt to load path, otherwise returns a newly constructed config.

Ascending means earlier commits are at the top of the changelog, more recent are at the bottom.

Commits only.

Descending means most recent commits are at the top of the changelog.

PullRequests requests that we pull PR information if available.

ChangeItem stores properties exposed to users for Changelog creation.

Config provides a user with more robust options for Changelog configuration.

GitURLs contains locations commonly found in changelogs.

Grouping allows assigning a grouping name with a set of regex patterns or texts.

TemplateData is the structure(s) bound to templates See https://golang.org/pkg/text/template/ for template details.

TemplateGroup allows for data to be grouped in order as defined by user config.

ResolveType is a type alias representing the enumeration of options which configure how commits are processed (if commit only or if we lookup any available pull request info).