publish libraries to avoid users to have to download them one by one

lib/SparkFun_BME280/examples/I2C_DeltaAltitude/CircularBuffer.h

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+#ifndef CIRCULARBUFFER_H
+#define CIRCULARBUFFER_H
+#include <stdint.h>
+
+//****************************************************************************//
+//
+//  Circular Buffer
+//
+//****************************************************************************//
+
+//Class CircularBuffer is int16_t
+//Does not care about over-running real data ( if request is outside length's bounds ).
+//For example, the underlying machine writes [48], [49], [0], [1] ... 
+
+class CircularBuffer
+{
+public:
+    CircularBuffer( uint16_t inputSize );
+	~CircularBuffer();
+    float getElement( uint16_t ); //zero is the push location
+    void pushElement( float );
+    float averageLast( uint16_t );
+    uint16_t recordLength( void );
+private:
+	uint16_t cBufferSize;
+    float *cBufferData;
+    int16_t cBufferLastPtr;
+    uint8_t cBufferElementsUsed;
+};
+
+
+
+#endif // CIRCULARBUFFER_H