chg: reconnect to a disconnected proxmark3 device without restarting the client. Old functionality restored :)

chg: renamed thread
chg: easier if-statements for USART

client/comms.h

@@ -62,6 +62,8 @@ void SendCommandMIX(uint64_t cmd, uint64_t arg0, uint64_t arg1, uint64_t arg2, v
 void clearCommandBuffer(void);
 
 #define FLASHMODE_SPEED 460800
+bool IsCommunicationThreadDead(void);
+bool ReConnectProxmark(void);
 bool OpenProxmark(void *port, bool wait_for_port, int timeout, bool flash_mode, uint32_t speed);
 int TestProxmark(void);
 void CloseProxmark(void);