Support atomic ref count

refer to https://github.com/ChainSafe/state-transition-z/blob/e451a97137adcdcee5446cef5f795182925725ad/src/state_transition/utils/reference_count.zig#L8

also we want more brevity/conventional names:
- change ReferenceCount to RefCount
- acquire() to ref()
- release() to unref()