Add PropertyListHelper to Curves #32072

Job	Run time
📊 Static checks / Code style, file formatting, and docs	30s
🍏 iOS / Template (target=template_release)	4m 42s
🐧 Linux / Editor w/ Mono (target=editor)	25m 26s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	37m 51s
🤖 Android / Template (target=template_release)	15m 16s
🍎 macOS / Editor (target=editor, tests=yes)	16m 57s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	22m 36s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	13m 13s
🍎 macOS / Template (target=template_release)	8m 56s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	21m 5s
🌐 Web / Template w/o threads (target=template_release, threads=no)	13m 30s
🐧 Linux / Template w/ Mono (target=template_release)	12m 44s
🏁 Windows / Editor (target=editor, tests=yes)	30m 33s
🐧 Linux / Minimal template (target=template_release, everything disabled)	7m 14s
🏁 Windows / Template (target=template_release)	18m 19s
🪲 Godot CPP / Build and test Godot CPP	7m 36s
	4h 16m 28s

Provide feedback