Extend Analysis-Ready Data for MSI

[m-mohr]

• The EODC section should contain more details and also code snippets.
• The Terrascope code snippet should ideally be translated into other languages, too.
• EODC: Review content

[m-mohr]

All done, but EODC still needs to verify my code snippets work for the given extents. I couldn't check it as the EODC back-end is not working right now. @ValentinaHutter @pstranner You could also extend the description a bit more, it's very short at the moment.