build_pipeline: build a pre-build pipeline
In DrRes/jobwatcher: Build pipelines on HGC super-computer

build a pre-build pipeline

1 2	build_pipeline(pipe_name, pipe_dir, n_parallel = 2L, pipe_memory = 3L, force = FALSE, make_subdir = TRUE)

`pipe_name`	A character. Your pipeline name.
`pipe_dir`	A directory path where you intend to build a pipeline. If it does not exist, it will be made recursively.
`n_parallel`	A integer. The number you run elements of your pipeline simultaneously.
`pipe_memory`	A numeric. Request of memory size par slot for pipeline manager.
`force`	Alogical. Whether to run this function when pipe_dir exists and make_subdir is TRUE.
`make_subdir`	A logical. Whether to make minimum subdirectories under pipe_dir