HTML-714: Allow customizing View Encounter Print button functionality.
* adding ability to provide custom print functionality in another module via GP to print button in HFE UI encounter view controller
* HTML-714 : adding ability to customize HFE-UI print button in view encounter, changing variable names to match HFE-UI naming conventions
* HTML-714 : fixing indentation to match current module convention
* HTML-714 : changing to @SpringBean annotated param, moving target default '_self' to config.xml
