deutschebahn.js: Extract stop messages
For Zugportal messages. So far only "CUSTOMER_REASON" (which is probably what should be shown to the user) is extracted, there might be more.
Also, not sure what others there are, and what "code 34" is.
Example
"messages":[{
"code":"34",
"type":"CUSTOMER_REASON",
"displayPriority":null,
"category":null,
"text":"Reparatur an einem Signal",
"textShort":null
}]