Release note 2.7.0

[AnthonyLaw]

Release note

• 2.7.0
  • Added SuperNode program module
    • It allows user to enroll the SuperNode program from the wallet
    • It allows the user to track reward payout history
    • It shows node harvesting status and total collected rewards
    • Fixed app code signing and notarization issues and updated the Readme

[AnthonyLaw]

@0x6861746366574 I had added a little bit more in the change log and readme. let me know if you anything like to add.