Create a default mapping which is dpa-independent

[dpa-mediatec]

The actual mapping (default) contains dpa specific mapping. The default mapping should be

• dpa indpended
• follow strict the IPTC recommondation within the Photo Metadata spec

The dpa specific mapping should be provided within an individual folder e.g mapping/dpa-mapping.xml

[ola-github]

move dpa-mapping to examples

[ola-github]

done