added dx12

all.hxml

@@ -25,3 +25,12 @@
 -lib hldx
 -lib hlopenal
 -xml heaps_hldx.xml
+
+--next
+
+-hl heaps.hl
+-lib hldx
+-lib hlopenal
+-D dx12
+-xml heaps_hldx12.xml
+-D hl-ver=1.13.0