get_filetype
🔗NAME
get_filetype
🔗SYNOPSIS
get the filetype from a filename
🔗USAGE
local df = require "lib/dtutils.file"
local result = df.get_filetype(filepath)
filepath - string - path and filename
🔗DESCRIPTION
get_filetype returns the filetype from the supplied filepath
🔗RETURN VALUE
result - string - the filetype