Mod SDK: Arc Overlays (#2280)

* Mod SDK: Arc Overlays

* Use DVD Functions for Arc overlays

* Re-add Fetchcontent for json.hpp

* Fix build for actions

* Make sure buffer usues aligned length

* Add include so msvc compiles

* Arc Overlays fixes: remove _arc suffix, handle getting overlayed file size from arcs, copy data correctly, etc.

* Reload overlayed data during loading screens

* Rename sync function

* Free overlayed files on load instead of re-loading them

* Rework arc overlays & load overlay files into host memory

---------

Co-authored-by: Luke Street <luke@street.dev>

src/d/d_lib.cpp

@@ -311,6 +311,11 @@ u32 dLib_getExpandSizeFromAramArchive(JKRAramArchive* i_aramArchive, char const*
     JUT_ASSERT(1260, readAddress == header);
     JKRArchive::SDIFileEntry* entry = i_aramArchive->findFsResource(param_2, 0);
     JUT_ASSERT(1263, entry != NULL);
+#if TARGET_PC
+    if (u32 size; i_aramArchive->getOverlayFileSize(entry, &size)) {
+        return ALIGN_NEXT(size, 32);
+    }
+#endif
     u32 uVar1 = ALIGN_NEXT(JKRDecompExpandSize(header), 32);
     u32 uVar5 = ALIGN_NEXT(entry->data_size, 32);
     return uVar1 > uVar5 ? uVar1 : uVar5;