Update MQTTnet.AspNetCore.nuspec
Update MQTTnet.AspNetCore.nuspec

added dependencies to nuspec
chkr1011/MQTTnet,JTrotta/MQTTnet,JTrotta/MQTTnet,JTrotta/MQTTnet,chkr1011/MQTTnet,chkr1011/MQTTnet,chkr1011/MQTTnet,JTrotta/MQTTnet,chkr1011/MQTTnet