Compatible with SeuratExplorerServer Package

reorganized the codes in order to reuse some functions in other R pacakge.

ShinyApp for plot and DEG functions from Seurat package

update Readme file and remove a redundancy function in DEGs analysis.

DEGs analysis included but not finished

FindAllMarkers and FindMarkers function included, but for DEGs analysis between two groups within selected clusters not finished.

初稿基本完成

DEGs analysis function completed,

new plot functions added

new plot functions added: dotplot, heatmap and ridgeplot.

Darwing logic updated, part functions are ready

now support dimplot featureplot and vlnplot. and with 2 known bugs!

few functions without much bugs

only support Dimplot and Featureplot.