comoparams 0.2.1.9000

removed dependency to curl in data drop functions which were causing HTML 404 and 403 errors consistently
replaced curl with googledrive::drive_download which sorts out the proper way of downloading from Google Drive
added unit tests using testthat
updated set parameter functions based on new CoMo Model template (v13)
updated set parameter functions to use cli

comoparams 0.2.0.9000

updated pull functions for population
added datasets for population
added dataset for mapping of data sources
updated README to describe new function specifications
added pattern to recognise variant dates on filename of README which changed in format for 2020-06-18 (from MM/DD to MM_DD) which caused an error
added check for bit.ly links to include http (not https) for getURL
added codefactor checks

Re-configured functions for pulling data from Data Drop by separating get functions from calculate functions
Adjusted get functions to be more universal to allow for capture of new data for new months considering how Data Drop Google Drive folder/directory is organised
Added main functionality for get functions to pull the latest release data using the dynamic link sent everyday via a PDF document
Added GitHub actions

Revised README using tables
Updated vignette on CoMo model
Created new package hex sticker
Updated pull data functions to adapt to changes made by the Department of Health on the COVID-19 DataDrop Google Drive directory structure after 27 April 2020
Created new calculate functions for certain rates needed for model parameters: ph_calcualte_pdeath() for calculating probability of dying when hospitalised; ph_calculate_nus() for calculating duration of hospitalised infection
Updated pull functions for COVID-19 Data Drop to account for non-standard naming of directories in the Google Drive archives

Created pull data functions for the Department of Health COVID-19 Data Drop initially using a Google Sheets interface and then shifting to a Google Drive interface
Updated pull data functions to adapt to changes made by the Department of Health on the COVID-19 DataDrop Google Drive directory structure
Updated pull data functions to adapt to a shift in date value specifications starting from datasets published on 2020-05-05
Created a calculate rates function to organise and structure data on case information into format compatible with CoMo model parameters requirement and for calculating infection fatality rate (IFR), infection hospitalisation rate (IHR), and hospitalisation fatality rate (HFR)
Created parameter setting functions to provide interactive assistance in putting together the informaiton needed for the model parameters
Added a NEWS.md file to track changes to the package.
Created pkgdown site using flatly bootstrap template consistent with stylesheet used for the CoMo app.
Created CI/CD setup using Travis and Appveyor