Add data dictionary plugin

This commits move the data dictionary from https://github.com/astante/openetcs-datadictionary to the openetcs toolchain repository. The development will be continued on the toolchain repository.
Add data dictionary to product specification #288
openETCS Target Platform Issues #287
Added transient dependencies, which are automatically picked up in the tycho build, to the target feature.
script to generate release note closes #264
release note for the tool sprint releases
Remove unused file
add meta data for html export
Updated Tool chain overview
Providing more Perm Memory for openETCS #291
Using the higher memory settings for the 64bit product configuration in the product configuration
Merge pull request #293 from jfaltermeier/master

Issues #291, #288, #287
Roadmap updated #248 should be disscussed in a scrum telco
Updated tool chain qualification process, included some remarks (not all yet)
Additions to SystemC and Uppaal sections
Merge pull request #295 from srieger/master

Additions to SystemC and Uppaal sections in D7.2
Merge branch 'master' into tracing
Plug-In (more or less) complete and working.