chore: bump to 0.3.2

Signed-off-by: Chojan Shang <psiace@outlook.com>

chore: bump 0.3.1

Signed-off-by: Chojan Shang <psiace@outlook.com>

chore: bump to v0.3.0

reorganize the code, add more utils

fix serde, add no_std support

allow more features, make clippy happy

port hashlink, support amortization