v0.9.7

AlgebraOfGraphics v0.9.7

Diff since v0.9.6

Merged pull requests:

• Fix axis labelling in unlinked col or row only layouts (#623) (@jkrumbiegel)
• Use legend instead of show_labels for Row, Col and Layout (#624) (@jkrumbiegel)
• Add wrapped convenience for Layout scale (#625) (@jkrumbiegel)
• prepare v0.9.7 (#626) (@jkrumbiegel)