[ox] Make UUID serializable, and make serialize as a string in OC

deps/ox/src/ox/oc/read.cpp

@@ -290,6 +290,12 @@ Error OrganicClawReader::fieldCString(const char *key, char **val, std::size_t b
 	return err;
 }
 
+Error OrganicClawReader::field(const char *key, UUID *val) noexcept {
+	UUIDStr str;
+	oxReturnError(field(key, &str));
+	return UUID::fromString(str).moveTo(val);
+}
+
 Result<std::size_t> OrganicClawReader::arrayLength(const char *key, bool) noexcept {
 	const auto &jv = value(key);
 	if (jv.empty()) {

deps/ox/src/ox/oc/read.hpp

@@ -21,6 +21,7 @@
 #include <ox/std/memops.hpp>
 #include <ox/std/memory.hpp>
 #include <ox/std/string.hpp>
+#include <ox/std/uuid.hpp>
 
 namespace ox {
 
@@ -79,6 +80,8 @@ class OrganicClawReader {
 
 		Error fieldCString(const char *key, char **val, std::size_t buffLen) noexcept;
 
+		Error field(const char *key, UUID *val) noexcept;
+
 		/**
 		 * Reads an array length from the current location in the buffer.
 		 * @param pass indicates that the parsing should iterate past the array length

deps/ox/src/ox/oc/write.cpp

@@ -46,6 +46,15 @@ Error OrganicClawWriter::fieldCString(const char *key, char **val) noexcept {
 	return fieldCString(key, const_cast<const char**>(val), {});
 }
 
+Error OrganicClawWriter::field(const char *key, const UUID *uuid) noexcept {
+	const auto uuidStr = uuid->toString();
+	if (targetValid() && uuidStr.len()) {
+		value(key) = uuidStr.c_str();
+	}
+	++m_fieldIt;
+	return {};
+}
+
 Json::Value &OrganicClawWriter::value(const char *key) noexcept {
 	if (m_json.isArray()) {
 		return m_json[m_fieldIt];

deps/ox/src/ox/oc/write.hpp

@@ -18,6 +18,7 @@
 #include <ox/std/buffer.hpp>
 #include <ox/std/hashmap.hpp>
 #include <ox/std/string.hpp>
+#include <ox/std/uuid.hpp>
 
 namespace ox {
 
@@ -105,7 +106,7 @@ class OrganicClawWriter {
 				value(key) = *val;
 			}
 			++m_fieldIt;
-			return OxError(0);
+			return {};
 		}
 
 		template<typename T>
@@ -130,7 +131,7 @@ class OrganicClawWriter {
 				value(key) = w.m_json;
 			}
 			++m_fieldIt;
-			return OxError(0);
+			return {};
 		}
 
 		template<typename T>
@@ -172,6 +173,8 @@ class OrganicClawWriter {
 
 		Error fieldCString(const char *name, char **val) noexcept;
 
+		Error field(const char *key, const UUID *uuid) noexcept;
+
 		template<typename T>
 		Error field(const char*, T *val) noexcept;