More thoughts in vignette
Add render_text and render_arc
Plot method for geom_point
Add base plotting methods for geometries.
And fix a few bugs along the way
Tweak axes a little
Fix doc typo
Minor arc fixes
Add examples to geometry_rotate
Fix bug in resolution implementation
Default render_tile height and width to resolution
Implement geometry_jitter
Implement geom_flip
Default width for bars
Implement geometry_stack