Creates a badge.
The createBadge() function returns a Promise that resolves to the newly created badge.
New badges do not have any badge permissions by default. You can set badge permissions from the Badges page in the Dashboard.
If backgroundColor or textColor are not specified, they default to "#796EFF" (purple) and "#FFFFFF" (white) respectively.
You can only call this method when authenticated as a Wix app or Wix user identity.
Badge to create.