added cppunit unit testing framework, using cmake, stripped out the original build systems.

added starting point for Bullet unit tests, with one example unit test
Enable the option BUILD_UNIT_TESTS in cmake to build the test. Note that the test doesn't automatically run.

UnitTests/cppunit/include/cppunit/TextOutputter.h

@@ -0,0 +1,59 @@
+#ifndef CPPUNIT_TEXTOUTPUTTER_H
+#define CPPUNIT_TEXTOUTPUTTER_H
+
+#include <cppunit/Portability.h>
+#include <cppunit/Outputter.h>
+#include <cppunit/portability/Stream.h>
+
+CPPUNIT_NS_BEGIN
+
+
+class Exception;
+class SourceLine;
+class TestResultCollector;
+class TestFailure;
+
+
+/*! \brief Prints a TestResultCollector to a text stream.
+ * \ingroup WritingTestResult
+ */
+class CPPUNIT_API TextOutputter : public Outputter
+{
+public:
+  TextOutputter( TestResultCollector *result,
+                 OStream &stream );
+
+  /// Destructor.
+  virtual ~TextOutputter();
+
+  void write();
+  virtual void printFailures();
+  virtual void printHeader();
+
+  virtual void printFailure( TestFailure *failure,
+                             int failureNumber );
+  virtual void printFailureListMark( int failureNumber );
+  virtual void printFailureTestName( TestFailure *failure );
+  virtual void printFailureType( TestFailure *failure );
+  virtual void printFailureLocation( SourceLine sourceLine );
+  virtual void printFailureDetail( Exception *thrownException );
+  virtual void printFailureWarning();
+  virtual void printStatistics();
+
+protected:
+  TestResultCollector *m_result;
+  OStream &m_stream;
+
+private:
+  /// Prevents the use of the copy constructor.
+  TextOutputter( const TextOutputter &copy );
+
+  /// Prevents the use of the copy operator.
+  void operator =( const TextOutputter &copy );
+};
+
+
+
+CPPUNIT_NS_END
+
+#endif  // CPPUNIT_TEXTOUTPUTTER_H