Add setting to scale primary industry cargo production

src/saveload/extended_ver_sl.cpp

@@ -142,6 +142,7 @@ const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
 	{ XSLFI_VENC_CHUNK,             XSCF_IGNORABLE_ALL,       1,   1, "venc_chunk",                nullptr, nullptr, "VENC"         },
 	{ XSLFI_ANIMATED_TILE_EXTRA,    XSCF_NULL,                1,   1, "animated_tile_extra",       nullptr, nullptr, nullptr        },
 	{ XSLFI_NEWGRF_INFO_EXTRA,      XSCF_NULL,                1,   1, "newgrf_info_extra",         nullptr, nullptr, nullptr        },
+	{ XSLFI_INDUSTRY_CARGO_ADJ,     XSCF_IGNORABLE_UNKNOWN,   1,   1, "industry_cargo_adj",        nullptr, nullptr, nullptr        },
 	{ XSLFI_NULL, XSCF_NULL, 0, 0, nullptr, nullptr, nullptr, nullptr },// This is the end marker
 };
 

src/saveload/extended_ver_sl.h

@@ -96,6 +96,7 @@ enum SlXvFeatureIndex {
 	XSLFI_VENC_CHUNK,                             ///< VENC chunk
 	XSLFI_ANIMATED_TILE_EXTRA,                    ///< Animated tile extra info
 	XSLFI_NEWGRF_INFO_EXTRA,                      ///< Extra NewGRF info in savegame
+	XSLFI_INDUSTRY_CARGO_ADJ,                     ///< Industry cargo adjustment patch
 
 	XSLFI_RIFF_HEADER_60_BIT,                     ///< Size field in RIFF chunk header is 60 bit
 	XSLFI_HEIGHT_8_BIT,                           ///< Map tile height is 8 bit instead of 4 bit, but savegame version may be before this became true in trunk