[Epic] Update dotnet-isolated item templates to reflect new SDK-type binding

[liliankasem]

Epic to track all of the template updates for the SDK-Binding feature

### Tasks
- [ ] https://github.com/Azure/azure-functions-templates/issues/1375
- [ ] https://github.com/Azure/azure-functions-templates/issues/1376
- [ ] https://github.com/Azure/azure-functions-templates/issues/1377
- [ ] https://github.com/Azure/azure-functions-templates/issues/1378
- [ ] https://github.com/Azure/azure-functions-templates/issues/1379
- [ ] https://github.com/Azure/azure-functions-templates/issues/1380
- [ ] https://github.com/Azure/azure-functions-templates/issues/1381