Add missing dep on Microsoft.Bcl.Async that fixes runtime exceptions
Add missing dep on Microsoft.Bcl.Async that fixes runtime exceptions

poxet/InfluxDB.Net,jamesholcomb/InfluxDB.Net,jamesholcomb/InfluxDB.Net,poxet/InfluxDB.Net,ziyasal/InfluxDB.Net,ziyasal/InfluxDB.Net,ovjhc/InfluxDB.Net,ovjhc/InfluxDB.Net