Improve bt_device object to include more details about the device

[mdmohsin7]

Including bt_device object to have firmware version, and firmware details as part of the object, instead of separate preferences, ideally includes bootloader, fwver, etc.

[mdmohsin7]

Should we change the device type from friend to devKit1?

[mdmohsin7]

There are two different objects basically holding the same information to an extent. And both of them are dependent on each other (DeviceInfo and BTDeviceStruct)

class DeviceInfo {
  String modelNumber;
  String firmwareRevision;
  String hardwareRevision;
  String manufacturerName;
  DeviceType type;
  }

class BTDeviceStruct {
String name;
String id;
int? rssi;
List<int>? fwver;
DeviceType? type;
}

The DeviceInfo object has methods to read characteristics to get data like the firmware version, hardware name etc., But it depends on BtDeviceStruct to differentiate between device type using the type property. And in many places in the code, both of them are being used together.

Both of them can be combined together to have a unified object for device details.

 class BtDevice {
   String name;
   String id;
   int? rssi;
   DeviceType type;
   BtDeviceInfo? btDeviceInfo;
  }

class BtDeviceInfo {
 String modelNumber;
 String firmwareRevision;
 String hardwareRevision;
 String manufacturerName;
 }

The BtDevice will also includes methods to convert BluetoothDevice (from flutter_blue_plus) to BtDevice etc., apart from the already existing methods, getters and setters. The BtDeviceInfo is basically DeviceInfo but renamed to DeviceInfo