Add "applications" method to rsconnect-python (already exists on R version)

[valmir-costa]

Could you please confirm if it would be possible to add "applications" on rsconnect-python ?
This function is very usefull when we need to collect data from "shinyapps.io" via CLI, but it is only available on R version.
Thanks

[toph-allen]

Note @tdstein: This is related to the applications() function in rsconnect, which returns some data from shinyapps.io: https://github.com/rstudio/rsconnect/blob/2ac4925a96520254551797adc64e3762a3a1ab1a/R/applications.R#L37