switch Cyclone to submodule on it's own git repo

that version also has it's license clearly stated by fdave

cpu/cyclone_config.h

@@ -0,0 +1,46 @@
+
+
+/**
+ * Cyclone 68000 configuration file
+ *
+ * Used for PicoDrive Cyclone build.
+ * See config.h in Cyclone directory for option descriptions.
+**/
+
+
+#define USE_MS_SYNTAX               0
+#define CYCLONE_FOR_GENESIS         2
+#define COMPRESS_JUMPTABLE          1
+#define MEMHANDLERS_ADDR_MASK       0
+
+#define MEMHANDLERS_NEED_PC         0
+#define MEMHANDLERS_NEED_PREV_PC    0
+#define MEMHANDLERS_NEED_FLAGS      0
+#define MEMHANDLERS_NEED_CYCLES     1
+#define MEMHANDLERS_CHANGE_PC       0
+#define MEMHANDLERS_CHANGE_FLAGS    0
+#define MEMHANDLERS_CHANGE_CYCLES   0
+
+#define MEMHANDLERS_DIRECT_PREFIX   "cyclone_"
+
+#define USE_INT_ACK_CALLBACK        1
+
+#define INT_ACK_NEEDS_STUFF         0
+#define INT_ACK_CHANGES_CYCLES      0
+
+#define USE_RESET_CALLBACK          1
+#define USE_UNRECOGNIZED_CALLBACK   1
+#define USE_AFLINE_CALLBACK         1
+
+#define USE_CHECKPC_CALLBACK        1
+#define USE_CHECKPC_OFFSETBITS_16   1
+#define USE_CHECKPC_OFFSETBITS_8    0
+#define USE_CHECKPC_DBRA            0
+
+#define SPLIT_MOVEL_PD              1
+
+#define EMULATE_TRACE               1
+#define EMULATE_ADDRESS_ERRORS_JUMP 1
+#define EMULATE_ADDRESS_ERRORS_IO   0
+#define EMULATE_HALT                0
+