common/bloom_filter: insert/contains methods for uint32_t

This will let us pass in an hobject_t::hash directly (for example) without
rehashing a string.

Signed-off-by: Sage Weil <sage@inktank.com>
common/bloom_filter: disable sequential tests

These are slow and are not useful.

Signed-off-by: Sage Weil <sage@inktank.com>
common/bloom_filter: test binning fpp behavior

Signed-off-by: Sage Weil <sage@inktank.com>
common/bloom_filter: speed up unit tests a bit

Signed-off-by: Sage Weil <sage@inktank.com>
common/bloom_filter: note that uint32_t interface requires well-mixed values

Signed-off-by: Sage Weil <sage@inktank.com>