Gnssrefl

parallel processing for gnssir, makes it much much faster. still testing how
it should be used with the docker.

fixed some places in gnssir where files were being downloaded/created - this has been
moved to gnssir_cl.py so that multiple spawned processes won't overwrite.

beta version of multi-processing for gnssir. It is called gnssir2 for now. I will
merge with gnssir after more testing.

started experimenting with parallel processing. NOT official yet.

added some features to quickplt , relevant for SNR data. allow specific satellite
to be shown (if standard SNR file). removes zeros to make it all more useful.

quickLook will use a very simple refraction correction in quickLook, but only
if the coordinates are in the UNR database. This can be updated by someone to use
the coordinates in the gnssir_input created file - as in nmea2snr - but I am
not going to do that. This is important for VERY tall sites - but mostly irrelevant
otherwise as quickLook is not an operational piece of software - it is for looking!

download_tides puts the request command behind a try so that there is a polite
error message when it crashes for any reason.

New documentation, various.

added RINEX 3 pickups from $REFL_CODE/YYYY/rinex for gzipped crx and rnx files

Store peak2noise in invsnr_input

removed gazillion print statements from invsnr

Changed inputs pktnlim to peak2noise, tempres to dec and snr_ending to snr in invsnr to be consistent with
other codes. I kept the interior variable names that David Purnell had used.

Mostly updating use cases

Added important verbiage about not allow python 3.11 for people with
local python installations

Warnings for Rinex 3 conversions using no look

Checked that pypi and docker install works