Add GetNode Attribute for CSharp #121

Job	Run time
📊 Static checks / Code style, file formatting, and docs	59s
🍏 iOS / Template (target=template_release)	6m 45s
🍎 macOS / Editor (target=editor, tests=yes)	26m 10s
🤖 Android / Template (target=template_release)	25m 25s
🍎 macOS / Template (target=template_release)	16m 49s
🐧 Linux / Editor w/ Mono (target=editor)	36m 19s
🐧 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)	43m 1s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	17m 32s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	31m 8s
🌐 Web / Template w/o threads (target=template_release, threads=no)	16m 44s
🏁 Windows / Editor (target=editor, tests=yes)	42m 49s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	28m 4s
🏁 Windows / Template (target=template_release)	29m 27s
🐧 Linux / Template w/ Mono (target=template_release)	16m 45s
🐧 Linux / Minimal template (target=template_release, everything disabled)	10m 24s
🪲 Godot CPP / Build and test Godot CPP	7m 35s
	5h 55m 56s

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