ALMAS13 — Ambiguity of TypeOfByteData attribute

For attribute TypeOfByteData in Class AlertDataExtraAttributes
Unclear whether or not strings should be null terminated.
Unclear whether only one or multiple int, float values etc. are valid for one instance of the class
Unclear whether the size of the value attribute not matching or being a multiple of the type from the TypeOfByteData attribute is an error condition

Clarify validity of byte data in AlertDataExtraAttributes

Strings are an array of UTF-8 characters without null termination
Multiple values of a particular data type are valid
The size of the value must be a multiple of the type of data unit size for Integer 16, 32 or 64
There should be a specific type (7) for media types. The description string should be the type / substype tree for media types.