Merge pull request #3747 from cmitu/platform-updates-2

platforms: add zip extension for PC-98

Author: joolswills

platforms.cfg

@@ -164,7 +164,7 @@ oric_fullname="Oric 1"
 pc88_exts=".d88 .cmt .m3u .t88"
 pc88_fullname="NEC PC-8801"
 
-pc98_exts=".d88 .d98 .88d .98d .fdi .xdf .hdm .dup .2hd .tfd .hdi .thd .nhd .hdd"
+pc98_exts=".d88 .d98 .88d .98d .fdi .xdf .hdm .dup .2hd .tfd .hdi .thd .nhd .hdd .zip"
 pc98_fullname="NEC PC-9801"
 
 pc_exts=".bat .com .conf .cue .dosz .exe .ins .ima .img .iso .m3u .m3u8 .sh .vhd .zip"