Use correct separator in keywords.txt (espressif#1175)

The Arduino IDE currently requires the use of a tab separator between the name and identifier. Without this tab the keyword is not highlighted. Reference: https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5:-Library-specification#keywords

Author: per1234

libraries/ArduinoOTA/keywords.txt

@@ -15,10 +15,10 @@ ArduinoOTA	KEYWORD1
 begin	KEYWORD2
 setup	KEYWORD2
 handle	KEYWORD2
-onStart KEYWORD2
-onEnd KEYWORD2
-onError KEYWORD2
-onProgress KEYWORD2
+onStartKEYWORD2
+onEndKEYWORD2
+onErrorKEYWORD2
+onProgressKEYWORD2
 
 #######################################
 # Constants (LITERAL1)

libraries/ESPmDNS/keywords.txt

@@ -14,10 +14,10 @@ MDNS	KEYWORD1
 #######################################
 
 begin	KEYWORD2
-end KEYWORD2
+endKEYWORD2
 addService	KEYWORD2
 enableArduino	KEYWORD2
-disableArduino KEYWORD2
+disableArduinoKEYWORD2
 
 #######################################
 # Constants (LITERAL1)

libraries/Ticker/keywords.txt

@@ -9,6 +9,6 @@ Ticker	KEYWORD1
 #######################################
 
 attach	KEYWORD2
-attach_ms KEYWORD2
-once KEYWORD2
-detach KEYWORD2
+attach_msKEYWORD2
+onceKEYWORD2
+detachKEYWORD2

libraries/Update/keywords.txt

@@ -13,10 +13,10 @@ Update	KEYWORD1
 #######################################
 
 begin	KEYWORD2
-end KEYWORD2
+endKEYWORD2
 write	KEYWORD2
 writeStream	KEYWORD2
-printError KEYWORD2
+printErrorKEYWORD2
 
 #######################################
 # Constants (LITERAL1)