create docker containers for client, lib and runner

[prasadtalasila]

One separate docker container to be created for:

The node:20.10.0-slim seems like a suitable container to use.

Component	Port	Copy / Install	volume mapping	Notes
client website	4000	client/build directory to /dtaas/client without the env.js	${PWD}/dtaas/client.js:/dtaas/env.js	npm serve package can be used
lib microservice	4001	libms from github npm registry	${PWD}/dtaas/files:/dtaas/files, ${PWD}/dtaas/lib:/dtaas/servers/lib/.env
runner microservice	4002	runner from github npm registry	${PWD}/dtaas/files:/dtaas/files

runner microservice

[prasadtalasila]

The runner is to be run from user workspace. It need not be run as a dedicated container.