Fix slow editor load on large projects (v2) #391

Job	Run time
📊 Static checks / Code style, file formatting, and docs	38s
🐧 Linux / Editor w/ Mono (target=editor)	3m 13s
🐧 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)	10m 28s
🍏 iOS / Template (target=template_release)	1m 30s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	35m 29s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	30m 29s
🍎 macOS / Editor (target=editor, tests=yes)	28m 56s
🐧 Linux / Template w/ Mono (target=template_release, tests=yes)	1m 9s
🤖 Android / Editor (target=editor)	26m 19s
🍎 macOS / Template (target=template_release, tests=yes)	3m 20s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	6m 6s
🤖 Android / Template arm32 (target=template_release, arch=arm32)	3m 49s
🐧 Linux / Minimal template (target=template_release, tests=yes, everything disabled)	51s
🌐 Web / Template w/o threads (target=template_release, threads=no)	7m 14s
🤖 Android / Template arm64 (target=template_release, arch=arm64)	4m 33s
🏁 Windows / Editor (target=editor, tests=yes)	8m 48s
🏁 Windows / Editor w/ clang-cl (target=editor, tests=yes, use_llvm=yes)	43m 57s
🏁 Windows / Template (target=template_release, tests=yes)	7m 40s
🪲 Godot CPP / Build and test Godot CPP	8m 30s
	3h 52m 59s

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