Add URL tools

[asg017]

Maybe another package?

• query parameters, url_query_parameters
• host, path
• scheme
• username/password

  http_url("https", "acs.ca.gov", "/path/to/file",                                
  http_url_query_parameters(                                                    
  "q", "books",                                                               
  "_format", "json",                                                           
  "timeout", 1500                                                             
  )                                                                             
  )                                                                               

http_url_domain('https://www.dir.ca.gov/cac/cac.html') -- 'www.dir.ca.gov'
http_url_tld('https://www.dir.ca.gov/cac/cac.html') -- 'ca.gov'
http_url_path('https://www.dir.ca.gov/cac/cac.html') -- '/cac/cac.html'
http_url_fragment('') -- ''
http_url_query_params('') -- ''