Wasm buffer manager support #14139

Job	Run time
python lint check	24s
rustfmt check	10s
clang format	35s
sanity checks	10s
rust build & test	44m 30s
shell test	12m 21s
clang tidy & clangd diagnostics check	13m 35s
generate binary dataset	2m 29s
gcc build & test	11m 7s
code coverage	36m 12s
clang build & test	10m 38s
apple clang build & test	14m 31s
msvc build & test	33m 22s
webassembly build & test	18m 57s
clang build & test with page_size_log2=16	6m 7s
clang build & test with page_size_log2=18	15m 56s
gcc build & test in-mem only with various vector size	4m 37s
gcc build & test with asan	26m 23s
linux extension test	24m 43s
benchmark / benchmark	10m 53s
macos extension test	2m 7s
report benchmark result	4s
windows extension test	5m 39s
	4h 55m 30s

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