v0.52.12

Meshes v0.52.12

Diff since v0.52.11

Merged pull requests:

• Implement a parametrization function for Wedge (#1162) (@mikeingold)
• Implement a parametrization function for Pyramid (#1163) (@mikeingold)
• Implement a parametrization function for Frustum (#1164) (@mikeingold)