Presentation and UX updates

[patrickcping]

• User experience and presentation
  • Updated command and flag help texts for readability and descriptiveness
  • Updated example texts to add a description to each example
  • Removed all config file structures from the help text (see PDI-2056)
  • Changed printed messages referring to "Pingcli" and "pingcli" to "Ping CLI" to create a product standard
  • Removed environment variable doc from flags to help multi-line readability
• Updated feedback command text
• Changed all instances of "Pingone" to "PingOne" to align with the product name
• Changed all instances of "Pingfederate" to "PingFederate" to align with the product name