build_favicon_design: Build the favicon design section of the request
In ARawles/faviconR: Wrapper Functions to the 'realfavicongenerator.net API'

This function helps with the creation of the 'favicon_design' section of the request. In turn, this function is fed by a number of other helper functions designed for each platform. Further details can be found in the realfavicongenerator.net API documentation

build_favicon_design(
  ios = ios_helper(),
  windows = windows_helper(),
  firefox_app = firefox_app_helper(),
  android_chrome = android_chrome_helper(),
  safari_pinned_tab = safari_pinned_tab_helper(),
  coast = coast_helper(),
  open_graph = open_graph_helper(),
  yandex_browser = yandex_browser_helper()
)

`ios`	list; list of ios parameters. Most easily created using the `ios_helper()` function.
`windows`	list; list of ios parameters. Most easily created using the `windows_helper()` function.
`firefox_app`	list; list of ios parameters. Most easily created using the `firefox_app_helper()` function.
`android_chrome`	list; list of ios parameters. Most easily created using the `android_chrome_helper()` function.
`safari_pinned_tab`	list; list of ios parameters. Most easily created using the `safari_pinned_tab_helper()` function.
`coast`	list; list of ios parameters. Most easily created using the `coast_helper()` function.
`open_graph`	list; list of ios parameters. Most easily created using the `open_graph_helper()` function.
`yandex_browser`	list; list of ios parameters. Most easily created using the `yandex_browser_helper()` function.