FileAccess: Introduce advance() for skipping bytes #73980

Job	Run time
📊 Static checks / Code style, file formatting, and docs	1m 1s
🍎 macOS / Template (target=template_release)	5m 47s
🍎 macOS / Editor (target=editor)	18m 44s
🐧 Linux / Template w/ Mono, release (target=template_release)	10m 25s
🐧 Linux / Editor with clang sanitizers (target=editor, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	19m 49s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=mold)	51m 40s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	5m 17s
🐧 Linux / Minimal template (target=template_release, everything disabled)	8m 55s
🐧 Linux / Editor with ThreadSanitizer (target=editor, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	17m 53s
🐧 Linux / Template w/ Mono, debug (target=template_debug)	9m 2s
🐧 Linux / Editor w/ Mono (target=editor)	30m 24s
🏁 Windows / Template (target=template_release)	6m 59s
🍏 iOS / Template (target=template_release)	3m 32s
🏁 Windows / Template w/ GCC (target=template_release, use_mingw=yes)	9m 31s
🏁 Windows / Editor w/ clang-cl (target=editor, use_llvm=yes)	12m 12s
🌐 Web / Template w/o threads (target=template_release, threads=no)	5m 7s
🤖 Android / Editor (target=editor)	14m 33s
🏁 Windows / Editor (target=editor)	23m 23s
🤖 Android / Template arm32 (target=template_debug, arch=arm32)	6m 23s
🤖 Android / Template arm64 (target=template_debug, arch=arm64)	7m 56s
	4h 28m 33s

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