Re-added fully complete and working Olivetti and NCR 386SX-class machines.

Moved Olivetti M290 to dev branch.
(Very) partially implemented Olivetti EVA gate array (used in M290).

src/chipset/CMakeLists.txt

@@ -18,6 +18,7 @@ add_library(chipset OBJECT acc2168.c cs8230.c ali1217.c ali1429.c headland.c int
 	neat.c opti495.c opti895.c opti5x7.c scamp.c scat.c via_vt82c49x.c
 	via_vt82c505.c sis_85c310.c sis_85c4xx.c sis_85c496.c sis_85c50x.c
 	gc100.c
+	olivetti_eva.c 
 	opti283.c opti291.c via_apollo.c via_pipc.c wd76c10.c
 	vl82c480.c)