Annotate plugin should trim strings

[mattrpav]

Given an annotation that takes a value as a constructor (ie Jackson's JsonRootName):

<jaxb:bindings node="xs:complexType[@name='DataModelType']">
  <annox:annotate>
    <annox:annotate annox:class="com.fasterxml.jackson.annotation.JsonRootName">DataModelType<annox:annotate>
  </annox:annotate>
  ...

if the bindings file gets formatted to wrap the line (ie editorconfig), the resulting annotation will contain the line wrap

Formatted:

<jaxb:bindings node="xs:complexType[@name='DataModelType']">
  <annox:annotate>
    <annox:annotate annox:class="com.fasterxml.jackson.annotation.JsonRootName">
       DataModelType<annox:annotate>
  </annox:annotate>
  ...

Output:

@JsonRootName("\n        DataModelType")

Fix: The annotation plugin should trim values to remove whitespace by default