Fix manual (De)Serialize implementations with serde_json

The new Deserializer implementation (#107) does not work with the
'serde_json' crate, particularly `serde_json::{to_string,
from_str}`. The new implementation always expects `byte array` for
deserilaiztion. Meanwhile, the 'serde_json' crate always (de)serializes
`String` as `Vector` [1][2] which is treated as `sequence` (e.g. not
'byte array') by default for (de)serialization [3].

To fix this issue, this patch extends the new Deserializer
implementation to support both `byte array` and `sequence`.

[1] https://github.com/serde-rs/json/blob/cc7a1608c9bb7736c884926e016421af41a1ebe7/src/ser.rs#L2168-L2175
[2] https://github.com/serde-rs/json/blob/cc7a1608c9bb7736c884926e016421af41a1ebe7/src/de.rs#L30-L39
[3] https://serde.rs/data-model.html#types

Signed-off-by: Patrick Roy <roypat@amazon.co.uk>
Signed-off-by: Bo Chen <chen.bo@intel.com>

Author: likebreath

coverage_config_x86_64.json

@@ -1,5 +1,5 @@
 {
-  "coverage_score": 78.57,
+  "coverage_score": 81.25,
   "exclude_path": ".*bindings\\.rs",
   "crate_features": "fam-wrappers,serde"
 }

src/serialize.rs

@@ -42,6 +42,18 @@ macro_rules! serde_impls {
                             backing[..limit].copy_from_slice(&bytes[..limit]);
                             Ok(backing)
                         }
+
+                        fn visit_seq<A: serde::de::SeqAccess<'a>>(self, mut seq: A) -> Result<Self::Value, A::Error> {
+                            let mut backing = [0u8; std::mem::size_of::<$typ>()];
+
+                            for backing_byte in &mut backing {
+                                let Some(byte) = seq.next_element()? else { break };
+
+                                *backing_byte = byte;
+                            }
+
+                            Ok(backing)
+                        }
                     }
 
                     let backing = deserializer.deserialize_bytes(BytesVisitor)?;