Hide classes in utils in separate namespace

Author: pschatzmann

src/DriverPins.h

@@ -394,10 +394,10 @@ class DriverPins {
   bool hasPins() { return !pins.empty(); }
 
  protected:
-  Vector<PinsI2S> i2s{0};
-  Vector<PinsSPI> spi{0};
-  Vector<PinsI2C> i2c{0};
-  Vector<PinsFunction> pins{0};
+  audio_driver_local::Vector<PinsI2S> i2s{0};
+  audio_driver_local::Vector<PinsSPI> spi{0};
+  audio_driver_local::Vector<PinsI2C> i2c{0};
+  audio_driver_local::Vector<PinsFunction> pins{0};
   bool sd_active = true;
 
   template <typename T>

src/Utils/Optional.h

@@ -1,6 +1,6 @@
 #pragma once
 
-namespace audio_driver {
+namespace audio_driver_local {
 
 /**
  * @brief A simple optonal implementation

src/Utils/Vector.h

@@ -4,7 +4,7 @@
 #endif
 #include <assert.h>
 
-namespace audio_driver {
+namespace audio_driver_local {
 
 /**
  * @brief Vector implementation which provides the most important methods as defined by std::vector. This class it is quite handy