setup: Setup and initialize flowr
In sahilseth/flowr: Streamlining Design and Deployment of Complex Workflows

This functions creates a directory structure in user's home directory. Additionally it creates a shortcut to the flowr helper script in ~/bin.

setup(
  bin = "~/bin",
  flow_base_path = opts_flow$get("flow_base_path"),
  flow_run_path = opts_flow$get("flow_run_path"),
  flow_conf_path = opts_flow$get("flow_conf_path"),
  flow_pipe_path = opts_flow$get("flow_pipe_paths")
)

`bin`	path to bin folder
`flow_base_path`	The base of flowr configuration and execution folders.
`flow_run_path`	base path to be used for execution of this flow. flowr would create a new time-stamped folder in this base path and use it for logs, scripts etc. The default is retrieved using `opts_flow$get("flow_run_path")`.
`flow_conf_path`	Flowr configuration folder, used by fetch_conf.
`flow_pipe_path`	Folder with all pipelines, used by fetch_pipes.