create mapping files for mobyle tools mapping

these files are a mere reformatting of the mobyle2 import script
mapping files. They are generated with a dirty oneliner and a manual edit
to add an XML root element.
For the record, the oneliner is:

sed 's#EDAM_topic:\(\w*\)#<topic>http:ZZedamontology.orgZtopic_\1<Ztopic>#g'
topic_mapping.txt | sed 's#\(.*\)/\(.*$\)#<tool name="\1">\2</tool>#'
| tr 'Z' '/' | tr -d ',' > mobyle_topics.xml