use Annotated Robj including PBMC10x to remove NonCD4Tcells from Control and B cells from L4 and keep just CD4Tcells

##. In this script I will remove Non T cells from PBMC

1. load libraries

2. Load Seurat Object

Cell type Distribution to check clusters

Cell type Distribution barplot

3. filter cells just keep CD4 T cells

Cell type Distribution to check clusters

4. filter B cells from L4

Cell type Distribution to check clusters

5. Save the Seurat object as an Robj file