Update some classes of CurieBLE library

Improve documentation and code formatting of BLEAttribute, BLECharacteristic
and BLEProfile classes

Signed-off-by: Biagio Montaruli <biagio.hkr@gmail.com>

Author: biagiom

libraries/CurieBLE/src/BLEAttribute.h

@@ -70,7 +70,7 @@ class BLEAttribute {
      * @param[in]  uuidsize     The max size of UUID
      *
      * @return  bool    true - UUID is the same with data
-     *                  		false- UUID is not the same with data
+     *                  false- UUID is not the same with data
      *
      * @note  none
      */
@@ -104,7 +104,7 @@ class BLEAttribute {
     void setHandle(uint16_t handle);
 
     static unsigned char numAttributes(void);
-    // The below APIs are for central device to discover the
+    // The below APIs are for central device to discover peripheral devices
     virtual void discover(bt_gatt_discover_params_t *params) = 0;
     virtual void discover(const bt_gatt_attr_t *attr,
                           bt_gatt_discover_params_t *params) = 0;

libraries/CurieBLE/src/BLECharacteristic.h

@@ -166,7 +166,7 @@ class BLECharacteristic : public BLEAttribute {
      *
      * @param   none
      *
-     * @return  unsigned char   The totla number of the notify attributes
+     * @return  unsigned char   The total number of the notify attributes
      *
      * @note  none
      */
@@ -303,8 +303,6 @@ class BLECharacteristic : public BLEAttribute {
 
 private:
     void _setValue(const uint8_t value[], uint16_t length);
-
-private:
 
     static unsigned char _numNotifyAttributes;
     static bt_uuid_16_t _gatt_chrc_uuid;
@@ -329,7 +327,7 @@ class BLECharacteristic : public BLEAttribute {
     bt_gatt_attr_t *_attr_cccd;
 
     // For central device to subscribe the Notification/Indication
-   bt_gatt_subscribe_params_t _sub_params;
+    bt_gatt_subscribe_params_t _sub_params;
 
     bool _reading;
     bt_gatt_read_params_t _read_params;

libraries/CurieBLE/src/BLEProfile.h

@@ -166,7 +166,7 @@ class BLEProfile{
      * @param[in]   BLEAttribute *      The BLEAttribute object
      *
      * @return  bt_gatt_attr_t*    NULL - Not found
-     *                                  Not NULL - The bt_gatt_attr in the stack
+     *                             Not NULL - The bt_gatt_attr in the stack
      *
      * @note  none
      */
@@ -206,7 +206,7 @@ class BLEProfile{
     BLEAttribute** _attributes;
     uint16_t _num_attributes;
 
-   bt_gatt_subscribe_params_t *_sub_param;
+    bt_gatt_subscribe_params_t *_sub_param;
     int _sub_param_idx;
 
     bt_gatt_discover_params_t _discover_params;