feat: Add resolveProperties query and update sample.bicep to include subnet reference

Author: GeekMasher

ql/test/library-tests/resource/Resolve.expected

@@ -1,4 +1,6 @@
 resolveIdentifier
 | sample.bicep:1:1:3:1 | VirtualNetworks Resource | sample.bicep:5:1:8:1 | ResourceDeclaration |
 resolveResource
-| sample.bicep:15:1:28:1 | VirtualMachines Resource | sample.bicep:10:1:13:1 | NetworkInterfaces Resource |
+| sample.bicep:15:1:31:1 | VirtualMachines Resource | sample.bicep:10:1:13:1 | NetworkInterfaces Resource |
+resolveProperties
+| sample.bicep:15:1:31:1 | VirtualMachines Resource | sample.bicep:26:17:28:7 | Object |

ql/test/library-tests/resource/Resolve.ql

@@ -7,3 +7,8 @@ query predicate resolveIdentifier(Network::VirtualNetworks vn, Network::VirtualN
 query predicate resolveResource(Compute::VirtualMachines vm, Network::NetworkInterfaces ni) {
   ni = vm.getNetworkInterfaces()
 }
+
+query predicate resolveProperties(Compute::VirtualMachines vm, Object subnet) {
+  subnet = vm.getProperties().getNetworkProfile().getProperty("subnet")
+  
+}

ql/test/library-tests/resource/sample.bicep

@@ -23,6 +23,9 @@ resource linuxVm 'Microsoft.Compute/virtualMachines@2020-06-01' = {
           id: nic.id
         }
       ]
+      'subnet': {
+        id: existingSubnet.id
+      }
     }
   }
 }