change from content/home to content/uuid and set uuid in torchbear.toml

[naturallymitchell]

change from content/home to content/uuid and set uuid in torchbear.toml

we could also have a db of friends to that home content store
friend model with uuid to be used as document id of friend and of content store

[Arnaz87]

Use the field home_store in torchbear.toml, if none exists, generate a uuid and append it to the file.

This is a brittle solution because depending on how the toml is written, it can end up in a wrong toml table, but gotta be enough for now.

[Arnaz87]

For friends, profiles have an optional friend boolean field, rather than storing the list in a separate db

[naturallymitchell]

waiting on jazzdotdev/jazz-libs#7