add composition demo code

[nick1udwig]

Demo https://github.com/kinode-dao/kit/pull/186

Build

# Start fake node to host server.
kit f

# Start fake node to host client.
kit f -o /tmp/kinode-fake-node-2 -p 8081 -f fake2.dev

# Build & start server.
## Note starting is required because we need a deployed copy of server's API in order to build client.
## Below is it assumed that `kinode-book` is the CWD.
kit bs src/code/remote_file_storage/server

# Build & start client.
## Here the `-p 8080` is to fetch deps for building client (see the metadata.json dependencies field).
kit b src/code/remote_file_storage/client -p 8080 && kit s src/code/remote_file_storage/client -p 8081

Usage

# In fake2.dev terminal:
## Put a file onto fake.dev.
client:client:template.os put-file fake.dev -p client:template.os/pkg/manifest.json -n manifest.json

## Check the file was Put properly.
client:client:template.os list-files fake.dev

## Put a different file.
client:client:template.os put-file fake.dev -p client:template.os/pkg/scripts.json -n scripts.json

## Check the file was Put properly.
client:client:template.os list-files fake.dev

## Read out a file.
client:client:template.os get-file fake.dev -n scripts.json