Transfer Mission and HIFIS Structure

Transfer information to subpages (level 3) of a "Mission" page

• HIFIS Goals and Context
• Clusters
• HIFIS Details e.g. Summary Proposal
• Governance, Gremien, HIFIS-Zentren, Helmholtz, Inkubator

Remaining issues will be: 2nd level Mission page (linking to 3rd level pages) will need shaping. Link collection only.