Patch Notes: Fewer draw calls in towns with decorated yards

Performance

• Player yards now take far fewer draw calls. Each yard's 3D pieces are drawn together, and its repeated sprites (the same plant, the same statue) are drawn as one. Where decorated yards are in view, a town makes about 17-18% fewer draw calls a frame. This helps most where each draw call is expensive: the browser version and weaker CPUs and drivers.

What's Changed

• YARD-MERGE: joaomdb3's #843 - a settled yard's models one mesh, its flats of one picture one batch by @Lattymoy in #845
• YARD-MERGE: a settled yard's models one mesh, its flats of one picture one batch by @joaomdb3 in #843

Full Changelog: app-v0.1.8213...app-v0.1.8217