Industry: Apply anim tile masking when loading prior version saves

src/saveload/afterload.cpp

@@ -4051,6 +4051,10 @@ bool AfterLoadGame()
 		}
 	}
 
+	if (SlXvIsFeatureMissing(XSLFI_INDUSTRY_ANIM_MASK)) {
+		ApplyIndustryTileAnimMasking();
+	}
+
 	InitializeRoadGUI();
 
 	/* This needs to be done after conversion. */

src/saveload/extended_ver_sl.cpp

@@ -172,6 +172,7 @@ const SlxiSubChunkInfo _sl_xv_sub_chunk_infos[] = {
 	{ XSLFI_MORE_STATION_TYPES,     XSCF_NULL,                1,   1, "more_station_types",        nullptr, nullptr, nullptr        },
 	{ XSLFI_RV_ORDER_EXTRA_FLAGS,   XSCF_IGNORABLE_UNKNOWN,   1,   1, "rv_order_extra_flags",      nullptr, nullptr, nullptr        },
 	{ XSLFI_GRF_ROADSTOPS,          XSCF_NULL,                1,   1, "grf_road_stops",            nullptr, nullptr, nullptr        },
+	{ XSLFI_INDUSTRY_ANIM_MASK,     XSCF_IGNORABLE_ALL,       1,   1, "industry_anim_mask",        nullptr, nullptr, nullptr        },
 	{ XSLFI_SCRIPT_INT64,           XSCF_NULL,                1,   1, "script_int64",              nullptr, nullptr, nullptr        },
 	{ XSLFI_NULL, XSCF_NULL, 0, 0, nullptr, nullptr, nullptr, nullptr },// This is the end marker
 };

src/saveload/extended_ver_sl.h

@@ -125,6 +125,7 @@ enum SlXvFeatureIndex {
 	XSLFI_MORE_STATION_TYPES,                     ///< More station types (field widening)
 	XSLFI_RV_ORDER_EXTRA_FLAGS,                   ///< Road vehicle order extra flags
 	XSLFI_GRF_ROADSTOPS,                          ///< NewGRF road stops
+	XSLFI_INDUSTRY_ANIM_MASK,                     ///< Industry tile animation masking
 
 	XSLFI_SCRIPT_INT64,                           ///< See: SLV_SCRIPT_INT64