feat(bs/testutil) use write cache

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>
feat(epictest) tests and benchmarks

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>
misc(bitswap/strat) rm noisy message

License: MIT
Signed-off-by: Brian Tiger Chow <brian@perfmode.com>