ksys/utils/byaml: First iteration of implementation.

4 Functions are still not fully matching with their inlined functions,
and at least one function is still missing.

src/KingSystem/Utils/Byaml/ByamlArrayIter.cpp

@@ -0,0 +1,29 @@
+#include "KingSystem/Utils/Byaml/ByamlArrayIter.h"
+#include "KingSystem/Utils/Byaml/Byaml.h"
+#include "KingSystem/Utils/Byaml/ByamlData.h"
+#include "KingSystem/Utils/Byaml/ByamlLocal.h"
+
+namespace al {
+ByamlArrayIter::ByamlArrayIter(const u8* data) {
+    mData = data;
+}
+
+const u32* ByamlArrayIter::getDataTable() const {
+    return reinterpret_cast<const u32*>(&mData[TypeTableOffset + getDataOffset()]);
+}
+
+bool ByamlArrayIter::getDataByIndex(ByamlData* data, s32 index) {
+    if (index < 0) {
+        return false;
+    }
+
+    if (index >= ByamlLocalUtil::getContainerSize(mData)) {
+        return false;
+    }
+
+    data->setType(ByamlType(mData[TypeTableOffset + index]));
+    data->setValue(getDataTable()[index]);
+
+    return true;
+}
+}  // namespace al