Add remaining Player commands

[andrewsayre]

Add support for the following player operations:

• 4.2.2 Get Player Info: Add Get Player Info #63
• 4.2.15 Get Queue Add Player Queue Commands #65
• 4.2.16 Play Queue Item Add Player Queue Commands #65
• 4.2.17 Remove Item(s) from Queue Add Player Queue Commands #65
• 4.2.18 Save Queue as Playlist Add Player Queue Commands #65
• 4.2.20 Move Queue Add Player Queue Commands #65
• 4.2.26 Check for Firmware Update: Add check update command #64