Update lib props, examples

Added dependency in library.properties - Sparkfun LSM6DS3 Breakout

Examples:
After change of IMU, method beat is missing. Deleted from examples.

Author: kubascikmichal

examples/RoboHeartBegin/RoboHeartBegin.ino

@@ -17,6 +17,4 @@ void setup() {
 }
 
 void loop() {
-    // Give computing time to the RoboHeart
-    heart.beat();
 }

examples/RoboHeartLED/RoboHeartLED.ino

@@ -38,9 +38,6 @@ void toggleLED() {
 }
 
 void loop() {
-    // Give computing time to the RoboHeart
-    heart.beat();
-    
     // LED indicator
     toggleLED();
     delay(500);

library.properties

@@ -7,4 +7,4 @@ paragraph=The RoboHeart library is compatible with the RoboHeart hardware platfo
 category=Communication
 url=https://github.com/Augmented-Robotics/roboheart-arduino-library
 architectures=*
-depends=TinyGSM,PubSubClient,Arduino_JSON,MPU6050_light
+depends=TinyGSM,PubSubClient,Arduino_JSON,MPU6050_light,SparkFun LSM6DS3 Breakout