Add CGMS module

lib_service/src/main/java/no/nordicsemi/android/service/SelectedBluetoothDeviceHolder.kt

@@ -10,6 +10,15 @@ class SelectedBluetoothDeviceHolder {
     fun isBondingRequired(): Boolean {
         return device?.bondState == BluetoothDevice.BOND_NONE
     }
+
+    fun getBondingState(): BondingState {
+        return when (device?.bondState) {
+            BluetoothDevice.BOND_BONDED -> BondingState.BONDED
+            BluetoothDevice.BOND_BONDING -> BondingState.BONDING
+            else -> BondingState.NONE
+        }
+    }
+
     fun bondDevice() {
         device?.createBond()
     }
@@ -22,3 +31,18 @@ class SelectedBluetoothDeviceHolder {
         device = null
     }
 }
+
+enum class BondingState {
+    NONE, BONDING, BONDED;
+
+    companion object {
+        fun create(value: Int): BondingState {
+            return when (value) {
+                BluetoothDevice.BOND_BONDED -> BONDED
+                BluetoothDevice.BOND_BONDING -> BONDING
+                BluetoothDevice.BOND_NONE -> NONE
+                else -> throw IllegalArgumentException("Cannot create BondingState for the value: $value")
+            }
+        }
+    }
+}