Update power measurement examples

Update power measurement examples to the state in which they were used as test cases in thesis

example/advanced/Power_Measurements/Display/Display.ino

@@ -3,7 +3,7 @@
 Dezibot dezibot = Dezibot();
 
 // How many times to run a command on the display consecutively;
-const uint16_t iterations = 5000;
+const uint16_t iterations = 1000;
 
 void setup() {
   dezibot.begin();