Install the HWTest SD folder on payload and desktop.

HWTest 0.15 only opens its GUI when sd:/hwtest is present, so clean and update installs now replace and copy that directory.

source/deletion_lists_clean.h

@@ -88,6 +88,7 @@ static const char* clean_root_files_to_delete[] = {
 static const char* clean_misc_dirs_to_delete[] = {
     "sd:/argon",
     "sd:/games",
+    "sd:/hwtest",
     "sd:/NSPs (Tools)",
     "sd:/Patched Apps",
     "sd:/SaltySD/flags",

source/deletion_lists_update.h

@@ -272,6 +272,7 @@ static const char* root_files_to_delete[] = {
 static const char* misc_dirs_to_delete[] = {
     "sd:/argon",
     "sd:/games",
+    "sd:/hwtest",
     "sd:/NSPs (Tools)",
     "sd:/Patched Apps",
     "sd:/SaltySD/flags",

source/install_update.c

@@ -113,6 +113,10 @@ int update_mode_install(omninx_variant_t variant) {
     res = folder_copy_with_progress_v2(src_path, "sd:/", "warmboot_mariko/");
     if (res != FR_OK && res != FR_NO_FILE) return res;
 
+    s_printf(src_path, "%s/hwtest", staging);
+    res = folder_copy_with_progress_v2(src_path, "sd:/", "hwtest/");
+    if (res != FR_OK && res != FR_NO_FILE) return res;
+
     if (variant == VARIANT_OC) {
         s_printf(src_path, "%s/SaltySD", staging);
         res = folder_copy_with_progress_v2(src_path, "sd:/", "SaltySD/");