Define outline for contributor documentation for ideal package structure

[desi]

This issue is for creating the outline of what would need to go into the contributor documenation around ideal package structure.

When creating the outline please see the comment from Mark on Issue 28

As part of this work please get feedback from team to finalize the outline and then create issues for filling in each of the areas of the outline. Please add the tickets to the epic and ensure they are pointed.

[desi]

Hey team! Please add your planning poker estimate with Zenhub @cryptodev-2s @kanthesha @MajorLift @mcmire