feat: Add support for background access permission (READ_HEALTH_DATA_IN_BACKGROUND)

[mikitu]

This PR adds support for the Health Connect background access permission, allowing apps to read health data while running in the background.

Main changes:

• Added support for PERMISSION_READ_HEALTH_DATA_IN_BACKGROUND permission
• Enhanced permission handling in PermissionUtils to process background access permission requests
• Included both background access permission and exercise route permission in getGrantedPermissions() results
• Updated documentation with background access permission details and examples
• Added background access permission handling to the example app

Additional improvements:

• Refactored special permissions handling in mapPermissionResult()
• Ensured consistent handling of both regular and special permissions

Usage example:
Request permissions:

requestPermission([
  {
    accessType: 'read',
    recordType: 'BackgroundAccessPermission',
  },
  {
    accessType: 'read',
    recordType: 'Steps',
  },
  {
    accessType: 'write',
    recordType: 'ExerciseRoute',
  }
]);

Example response from the example app:
Granted permissions:

{
  "permissions": [
    {"accessType": "read", "recordType": "CyclingPedalingCadence"},
    {"accessType": "write", "recordType": "CyclingPedalingCadence"},
    {"accessType": "read", "recordType": "ExerciseSession"},
    {"accessType": "write", "recordType": "ExerciseSession"},
    {"accessType": "read", "recordType": "StepsCadence"},
    {"accessType": "write", "recordType": "StepsCadence"},
    {"accessType": "read", "recordType": "Steps"},
    {"accessType": "write", "recordType": "Steps"},
    {"accessType": "write", "recordType": "ExerciseRoute"},
    {"accessType": "read", "recordType": "BackgroundAccessPermission"}
  ]
}

Check granted permissions:

getGrantedPermissions().then((permissions) => {
  const hasBackgroundAccess = permissions.some(
    (permission) =>
      permission.accessType === 'read' &&
      permission.recordType === 'BackgroundAccessPermission'
  );
  
  const hasExerciseRouteAccess = permissions.some(
    (permission) =>
      permission.accessType === 'write' &&
      permission.recordType === 'ExerciseRoute'
  );
});

[jnelder1]

Any update on this being merged, would love this feature for our project!

[brycegoh]

Any updates on when this PR can be merged? @matinzd able to take a look when you are free? Thanks, appreciate it!

[mikitu]

hi @matinzd, i fixed the conflicts. can you take a look ?

[brycegoh]

thanks everyone @mikitu @matinzd. Appreciate it a lot!

[premyslvlcek]

Hi, when can we expect a new release with this PR included? Thanks

[matinzd]

Hi @premyslvlcek

I need to do some testing before the actual release. You can try to fork and serve it in your own registry for now.

[premyslvlcek]

Hi @premyslvlcek

I need to do some testing before the actual release. You can try to fork and serve it in your own registry for now.

Okay, thanks for your quick response. I'll give it a try.