Support `std::net::Ipv4Addr` without a custom serde attribute

[slvrtrn]

Only after #221.

If we somehow implement a conditional ReverseSeqAccess, e.g., via the InnerDataTypeValidator, adding a new branch like ReversedArray, then we can get rid of custom serde for IPv4 and just use plain std::net::Ipv4Addr, similarly to std::net::Ipv6Addr.

Currently, without the serde attribute, the IPv4 ends up being reversed. This is slightly annoying, since IPv6 does not require any special treatment.

IIUIC, that is because ClickHouse stores IPv4 as a little-endian UInt32, but serde by default calls deserialization on [u8; 4] as IPv4 can be constructed from a big-endian byte array representing u32.

[ozgurcancal]

Should this feature also be valid for queries with no validation?

[slvrtrn]

We can't support it without validation, cause we have no access to schema, and we won't be able to figure out that that is an IPv4, as serde calls just deserialize_tuple IIRC. But let's wait until the insert is merged, too