Added initial interfaces and some sensors implementing them

Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/rsc/rsc.cxx

@@ -166,9 +166,10 @@ float RSC::getTemperature()
     return rsc_get_temperature(m_rsc);
 }
 
+#define INH20_TO_PA 248.84
 float RSC::getPressure()
 {
-    return rsc_get_pressure(m_rsc);
+    return rsc_get_pressure(m_rsc) * INH20_TO_PA;
 }
 
 void RSC::setMode(RSC_MODE mode)

src/rsc/rsc.hpp

@@ -26,6 +26,8 @@
 
 #include "rsc.h"
 #include <string>
+#include <interfaces/iPressure.hpp>
+#include <interfaces/iTemperature.hpp>
 
 namespace upm {
     /**
@@ -74,7 +76,7 @@ namespace upm {
      *
      * @snippet rsc.cxx Interesting
      */
-    class RSC {
+    class RSC : virtual public iPressure, virtual public iTemperature {
 
     public:
         /**
@@ -194,14 +196,14 @@ namespace upm {
          *
          * @return float compensated temperature value
          */
-        float getTemperature();
+        virtual float getTemperature();
 
         /**
          * Function to get the compensated pressure value
          *
          * @return float compensated pressure value
          */
-        float getPressure();
+        virtual float getPressure();
 
         /**
          * Function to set the mode for the RSC sensor: