Expand stroke and node types

Glyphs
#1

When an stroke is expanded, the nodes are changed.

Screen Shot 2020-11-27 at 15.04.59
Screen Shot 2020-11-27 at 15.04.59675×872 89.8 KB
Screen Shot 2020-11-27 at 15.05.31
Screen Shot 2020-11-27 at 15.05.31675×872 104 KB