ADD: @marshmellows42 's fixes for "lf cmdread" and CHANGELOG.md

ADD:  Added the "lf t55x7 wakeup" command. It will send a pwd,  and leave the antenna on.
Process like:
1. lf t55x7 wakeup p 11223344
2. lf search

---
It is still not finished,  will work together with the "lf t55x7 commands" in next step when I figure out the process from the datasheets.

client/lualibs/commands.lua

@@ -58,6 +58,7 @@ local _commands = {
 	CMD_PSK_SIM_TAG =                                                    0x0220,
 	CMD_AWID_DEMOD_FSK =                                                 0x0221,
 	CMD_VIKING_CLONE_TAG =                                               0x0222,
+	CMD_T55XX_WAKEUP =	                                              	 0x0224,
 	
 	--/* CMD_SET_ADC_MUX: ext1 is 0 for lopkd, 1 for loraw, 2 for hipkd, 3 for hiraw */