Implement `Vector2i/3i/4i` methods: `distance_to` and `distance_squared_to` #13375

Job	Run time
📊 Static checks / Code style, file formatting, and docs	3m 12s
🤖 Android / Template (target=template_release)	35m 38s
🍏 iOS / Template (target=template_release)	24m 39s
🍎 macOS / Editor (target=editor, tests=yes)	25m 5s
🍎 macOS / Template (target=template_release)	24m 22s
🏁 Windows / Editor (target=editor, tests=yes)	1h 23m 23s
🐧 Linux / Editor w/ Mono (target=editor)	54m 57s
🏁 Windows / Template (target=template_release)	53m 6s
🐧 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)	35m 58s
🌐 Web / Template (target=template_release)	19m 31s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	35m 18s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	36m 54s
🐧 Linux / Template w/ Mono (target=template_release)	26m 24s
🐧 Linux / Minimal template (target=template_release, everything disabled)	21m 42s
🪲 Godot CPP / Build and test Godot CPP	10m 12s
	8h 10m 21s

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