v0.2.2

PlotRNA v0.2.2

Diff since v0.2.1

Closed issues:

• plot_structure_makie is very slow on the first run (#1)
• Replace Requires.jl use with package extensions via PackageExtensionTools.jl (#4)

Merged pull requests:

• Use package extensions when available instead of Requires.jl (#7) (@marcom)