Create link_types_ref.csv
Create LinkPropertyLookupTable.csv

new example file, following recommendations in [fields for Metadata property lookup table](https://github.com/OSGeo/Cat-Interop/wiki/Fields-for-Metadata-property-lookup-table)
Merge pull request #9 from smrazgs/patch-1

Create LinkPropertyLookupTable.csv
Update LinkPropertyLookupTable.csv
Merge branch 'master' of github.com:OSGeo/Cat-Interop