Implemented SpectrumTree Class

[Alexander-Sol]

The spectrum tree is a basic Binary Search Tree storing mz, intensity pairs. The nodes are ordered by m.z.

This data structure will allow for efficient search and deletion. It will be used for efficiently aligning two spectra, as is required by spectral similarity.

[codecov[bot]]

Codecov Report

Merging #678 (41bde48) into master (ec1c965) will decrease coverage by 0.31%. The diff coverage is 91.13%.

:exclamation: Current head 41bde48 differs from pull request most recent head cf9b8c2. Consider uploading reports for the commit cf9b8c2 to get more accurate results

@@            Coverage Diff             @@
##           master     #678      +/-   ##
==========================================
- Coverage   81.30%   80.99%   -0.31%     
==========================================
  Files         153      142      -11     
  Lines       25970    25576     -394     
==========================================
- Hits        21115    20716     -399     
- Misses       4855     4860       +5     

Impacted Files	Coverage Δ
mzLib/MzLibUtil/TreeDictionary.cs	91.13% <91.13%> (ø)
mzLib/FlashLFQ/ChromatographicPeak.cs	90.97% <0.00%> (-1.09%)	:arrow_down:
mzLib/FlashLFQ/FlashLfqEngine.cs	88.92% <0.00%> (-0.06%)	:arrow_down:
...ectrometry/Deconvolution/DeconvoluterExtensions.cs	75.00% <0.00%> (ø)
...lution/Algorithms/ClassicDeconvolutionAlgorithm.cs	97.18% <0.00%> (ø)
...ution/Parameters/ClassicDeconvolutionParameters.cs	100.00% <0.00%> (ø)
mzLib/SpectralAveraging/Util/SpectraFileHandler.cs
...b/SpectralAveraging/Algorithms/OutlierRejection.cs
...ctralAveraging/Util/SpectralAveragingParameters.cs
.../SpectralAveraging/Algorithms/SpectralWeighting.cs
... and 20 more

[acesnik]

There are a few small places where you could add tests, but no need to do that before merging unless you feel like it.