CHG: changed to use BigBuff_Eml memory instead of big_buff_malloc.

CHG: downloading eml memory from device should use uint's
CHG: "hf legic read" has a different printing. It now prints 32bytes / row

client/data.c

@@ -23,7 +23,7 @@ void GetFromBigBuf(uint8_t *dest, int bytes, int start_index) {
 	clearCommandBuffer();
 	SendCommand(&c);
 }
-void GetEMLFromBigBuf(uint8_t *dest, int bytes, int start_index) {
+void GetEMLFromBigBuf(uint8_t *dest, uint32_t bytes, uint32_t start_index) {
 	sample_buf = dest;
 	UsbCommand c = {CMD_DOWNLOAD_EML_BIGBUF, {start_index, bytes, 0}};
 	clearCommandBuffer();