Fix formatter call by UUID and improve formatter common XSLT loading.

Instead of replacing @@formatterDir@@ flag and rewrite the XSLT, use the oasis catalog to define an entry point for common formatter resources.

A new entry is added to schemaplugin-uri-catalog.xml on startup:
```
<rewriteURI uriStartString="formatter" rewritePrefix="/home/francois/dev/jesse-geonetwork/web/src/main/webapp/WEB-INF/data/data/formatter" />
```

And then any XSLT could load common resources using an import statement:
```
  <xsl:include href="formatter/common.xsl"/>
```