added MEGA65-specific JOYCRSR command

tools/generate_strings.cc

@@ -200,6 +200,8 @@ const StringEntryList GLOBAL_Keywords_04 =  { ListType::KEYWORDS, "keywords_04",
 {
     // STD    CRT    M65    U64    X16
     { false, false, true,  false, false, "K04_01",   "SYSINFO",      }, // Not present in CBM BASIC dialects, Open ROMs specific
+    { false, false, true,  false, false, "K04_02",   "JOYCRSR",      }, // Not present in CBM BASIC dialects, Open ROMs specific
+
 
 } };