calpuff_05_output_opts: Set the CALPUFF output options
In rich-iannone/PuffR: A set of tools to help with CALPUFF dispersion modelling.

This function validates and writes CALPUFF output options.

calpuff_05_output_opts(calpuff_inp = "calpuff_template.txt", icon = TRUE,
  idry = TRUE, iwet = TRUE, it2d = FALSE, irho = FALSE, ivis = TRUE,
  lcomprs = TRUE, iqaplot = TRUE, ipftrak = 0, imflx = FALSE,
  imbal = FALSE, inrise = FALSE, icprt = FALSE, idprt = FALSE,
  iwprt = FALSE, icfrq = 1, idfrq = 1, iwfrq = 1, iprtu = 1,
  imesg = 2, ldebug = FALSE, ipfdeb = 1, npfdeb = 1, nn1 = 1,
  nn2 = 10)

`calpuff_inp`	the absolute path and filename for the working CALPUFF input file.
`icon`	the choice of whether to create a concentration output file.
`idry`	the choice of whether to create a dry deposition flux output file.
`iwet`	the choice of whether to create a wet deposition flux output file.
`it2d`	the choice of whether to create a 2D temperature output file.
`irho`	the choice of whether to create a 2D density output file.
`ivis`	the choice of whether to create a relative humidity output file (required for visibility analysis).
`lcomprs`	the choice of whether to compress the output data files.
`iqaplot`	the choice of whether to create a standard series of output files (e.g. locations of sources, receptors, grids, etc.) for QA purposes.
`ipftrak`	the choice of method for tracking puff locations and properties to the PFTRAK.DAT file: (0) no puff tracking, (1) track puffs at the end of each timestep, or (2) track puffs at the end of each sampling step.
`imflx`	the choice of whether to output data on mass flux across specified boundaries for selected species.
`imbal`	the choice of whether to output mass balance data for each species to the MASSBAL.DAT file.
`inrise`	the choice of whether to output plume properties for each rise increment, for each model timestep, for a single species to the RISE.DAT file.
`icprt`	the choice of whether to print concentrations.
`idprt`	the choice of whether to print dry flux data.
`iwprt`	the choice of whether to print wet flux data.
`icfrq`	the number of time intervals for which the concentration is printed.
`idfrq`	the number of time intervals for which the dry flux data is printed.
`iwfrq`	the number of time intervals for which the wet flux data is printed.
`iprtu`	the choice of units used when printing: (1) g/m3 for concentration, g/m2/s for deposition, (2) mg/m3 for concentration, mg/m2/s for deposition, (3) ug/m3 for concentration, ug/m2/s for deposition, (4) ng/m3 for concentration, ng/m2/s for deposition, or (5) odour units for concentration.
`imesg`	the choice of method for displaying messages during model execution: (0) no messages, (1) messages with advection step and puff ID, or (2) messages with date-time, number of old puffs, and number of emitted puffs.
`ldebug`	the choice of whether to store debugging information for the model run.
`ipfdeb`	the first puff to track when gathering debugging information.
`npfdeb`	the number of puffs to track when gathering debugging information.
`nn1`	the meteorological period to beginning gathering output.
`nn2`	the meteorological period to end gathering output.