Intial Release of TAG Workflows

What's Changed

• Benchmark cnv by @yueyaog in #4
• README.md update by @yueyaog in #5
• Benchmark cnv by @yueyaog in #6
• Added GATK4 CNV wdl by @yueyaog in #9
• Gatk cnv m2 by @yueyaog in #10
• Adding LegoPlotter WDL plus gitignore file by @MicahR-Y in #11
• commit of iChor workflow with 2 versions of step1 and 1 version of step2 by @stellaning1120 in #13
• update CNV json and remove old cnv by @yueyaog in #12
• First Commit for Liquid Biopsy Analysis Pipeline by @yueyaog in #14
• BenchmarkCNV: WDL to run wittyer on Trio samples by @yueyaog in #7
• Adding SV WDLs to TAG-public by @MicahR-Y in #18
• Clean up by @yueyaog in #21
• Added Upload plate_qc_metrics Function to SmartSeq QC WDL by @yueyaog in #20

Full Changelog: v0.1.0-alpha...v1.0.0