Add bin name in info tab, bin name starts with WLEDMM

package.json: Version from 0.14.0.2.0 to 0.14.0.2.1
output_bins.py and xml.cpp: MM postfix after WLED in bin name
index.js and json.cpp: Add bin name in info tab

wled00/json.cpp

@@ -654,6 +654,7 @@ static String resetCode2Info(int reason) {
 void serializeInfo(JsonObject root)
 {
   root[F("ver")] = versionString;
+  root[F("rel")] = releaseString; //WLEDSR to add bin name
   root[F("vid")] = VERSION;
   //root[F("cn")] = WLED_CODENAME;