message: Optimization: Mark Bitset's underlying array as Uninitialized
  Bitset handles its own initialization.
  This can saves around 10-20% for heavy Bitset users, e.g. the Delaunay::isValid() function.
diff: @@ -124,10 +124,8 @@ public:
  axom::utilities::BitTraits<Word>::BITS_PER_WORD;
  private:
  - enum
  - {
  - LG_BITS_PER_WORD = axom::utilities::BitTraits<Word>::LG_BITS_PER_WORD
  - };
  + static constexpr int LG_BITS_PER_WORD =
  + axom::utilities::BitTraits<Word>::LG_BITS_PER_WORD;
  public:
  /**
  @@ -149,7 +147,10 @@ public:
  axom::IndexType numWords =
  (m_numBits == 0) ? 1 : 1 + (m_numBits - 1) / BitsPerWord;
  - m_data = ArrayType(numWords, numWords, allocatorID);
  + m_data = ArrayType(axom::ArrayOptions::Uninitialized {},
  + numWords,
  + numWords,
  + allocatorID);
  m_data.fill(0);
  }
  