CytoSimplex release v0.2.0

• Added support for coloring dots by categorical or continuous variable, with options to use customized or built-in color palettes.
• Changed interactive 3D support of quaternary simplex plot from rgl to plotly. Now the default is interactive = TRUE for plotQuaternary() and it returns a plotly object.
• Added interactive support for ternary simplex plot, using plotly, triggered with interactive = TRUE
• Fixed wilcoxon bug
• Added readH5ADObsNames(), readH5ADObsVar(), readH5ADUnsSpMat(), readVelocytoLoom() for loading commonly seen necessary information from H5AD and LOOM files of RNA velocity analysis
• Added example tutorial for HSPC analysis in the manuscript
• Fixed error in plotQuaternary()