ImixsAIResultXMLAdapter - escape regex characters

[rsoika]

We should make use of Matcher.quoteReplacement(). This method escapes all special regex characters in the replacement string, so they are treated as normal characters.
The Matcher.quoteReplacement() method specifically escapes the $ and , which have special meaning in replacement strings:

$ is usually used for group references
. is used for escaping

With this fix, we should solve problems with ugly text strings in xml