Xbox NXDK: Build a zip instead of iso

ISO is not useful for us because the user still has to put diabdat.mpq
on the hard drive. At this point, might as well put DevilutionX on the
hard drive as well.

Changes the CI to produce a zip file with our assets and the `default.xbe`
executable.

.github/workflows/xbox_nxdk.yml

@@ -23,7 +23,7 @@ jobs:
 
     - name: Build NXDK
       shell: bash
-      run: PATH="${NXDK_DIR}/bin:$PATH" make -j $(nproc) -C "$NXDK_DIR" NXDK_ONLY=1 all cxbe extract-xiso
+      run: PATH="${NXDK_DIR}/bin:$PATH" make -j $(nproc) -C "$NXDK_DIR" NXDK_ONLY=1 all cxbe
 
     - name: Checkout
       uses: actions/checkout@v3
@@ -37,13 +37,11 @@ jobs:
     - name: Build
       working-directory: ${{github.workspace}}
       shell: bash
-      run: cmake --build build-xbox -j $(nproc) --target nxdk_iso
+      run: cmake --build build-xbox -j $(nproc) --target nxdk_xbe
 
     - name: Upload-Package
       if: ${{ !env.ACT }}
       uses: actions/upload-artifact@v3
       with:
         name: devilutionx
-        path: |
-          build-xbox/pkg/default.xbe
-          build-xbox/devilutionx.iso
+        path: build-xbox/pkg/

CMakeLists.txt

@@ -470,7 +470,6 @@ endif()
 if(NXDK)
   set(_nxdk_pkg_dir "${CMAKE_BINARY_DIR}/pkg")
   set(_xbe_path "${_nxdk_pkg_dir}/default.xbe")
-  set(_iso_path "${CMAKE_BINARY_DIR}/devilutionx.iso")
   add_custom_command(
     OUTPUT "${_xbe_path}"
     COMMAND "${CMAKE_COMMAND}" -E make_directory "${_nxdk_pkg_dir}"
@@ -478,12 +477,6 @@ if(NXDK)
     DEPENDS "${BIN_TARGET}"
   )
   add_custom_target(nxdk_xbe DEPENDS "${_xbe_path}")
-  add_custom_command(
-      OUTPUT "${_iso_path}"
-      COMMAND "${NXDK_DIR}/tools/extract-xiso/build/extract-xiso" -c "${_nxdk_pkg_dir}" "${_iso_path}"
-      DEPENDS nxdk_xbe devilutionx_copied_assets
-  )
-  add_custom_target(nxdk_iso DEPENDS "${_iso_path}")
 endif()
 
 if(CPACK AND (APPLE OR BUILD_ASSETS_MPQ OR SRC_DIST))