Adding a new platform

[sahilseth]

Adding a new platform involves a few moving pieces.

1. Job submission
2. Parsing of job IDs, the platform returns upon submission
3. Providing job IDs to the subsequent, as a dependency to subsequent jobs

Example, adding torque:

1. submission: Template used for submission:
   https://github.com/sahilseth/flowr/blob/master/inst/conf/torque.sh
2. parse_jobid: The job ids should parse using regular expression as provided by:
   https://github.com/sahilseth/flowr/blob/master/inst/conf/flowr.conf
   As used in parse-jobids():
   https://github.com/sahilseth/flowr/blob/master/R/parse-jobids.R
3. parse_dependency: These are then parsed to create a dependency string, as seen here:
   https://github.com/sahilseth/flowr/blob/master/R/parse-dependency.R
4. job(): Add a new class using the platform name. This is essentially just a wrapper around job class.
   https://github.com/sahilseth/flowr/blob/master/R/class-def.R
   setClass("torque", contains = "job")
5. Killing jobs

• Its important to have the right kill command in: detect_kill_cmd()