Add support for partial updates and SS in dynamodb.
Add support for partial updates and SS in dynamodb.

Brett55/moto,gjtempleton/moto,spulec/moto,whummer/moto,2mf/moto,Affirm/moto,Affirm/moto,mrucci/moto,tootedom/moto,okomestudio/moto,ZuluPro/moto,kefo/moto,kefo/moto,rocky4570/moto,rocky4570/moto,william-richard/moto,okomestudio/moto,riccardomc/moto,kefo/moto,zonk1024/moto,ZuluPro/moto,dbfr3qs/moto,whummer/moto,2rs2ts/moto,gjtempleton/moto,Brett55/moto,Brett55/moto,dbfr3qs/moto,whummer/moto,heddle317/moto,heddle317/moto,whummer/moto,william-richard/moto,heddle317/moto,EarthmanT/moto,william-richard/moto,Affirm/moto,spulec/moto,dbfr3qs/moto,heddle317/moto,2rs2ts/moto,botify-labs/moto,ZuluPro/moto,IlyaSukhanov/moto,2rs2ts/moto,2rs2ts/moto,rocky4570/moto,rocky4570/moto,okomestudio/moto,spulec/moto,okomestudio/moto,botify-labs/moto,Brett55/moto,botify-labs/moto,okomestudio/moto,dbfr3qs/moto,ZuluPro/moto,behanceops/moto,rocky4570/moto,spulec/moto,2rs2ts/moto,Affirm/moto,gjtempleton/moto,Brett55/moto,Affirm/moto,braintreeps/moto,rocky4570/moto,william-richard/moto,whummer/moto,gjtempleton/moto,botify-labs/moto,kefo/moto,im-auld/moto,william-richard/moto,spulec/moto,whummer/moto,gjtempleton/moto,dbfr3qs/moto,spulec/moto,botify-labs/moto,okomestudio/moto,ZuluPro/moto,william-richard/moto,ZuluPro/moto,Affirm/moto,dbfr3qs/moto,kefo/moto,silveregg/moto,heddle317/moto,Brett55/moto,botify-labs/moto