Option to allocate or not the vCPUs and RAM settings for the GNS3 VM. Fixes https://github.com/GNS3/gns3-gui/issues/3069

gns3server/controller/gns3vm/hyperv_gns3_vm.py

@@ -251,9 +251,10 @@ class HyperVGNS3VM(BaseGNS3VM):
             raise GNS3VMError("Could not find Hyper-V VM {}".format(self.vmname))
 
         if not self._is_running():
-            log.info("Update GNS3 VM settings (CPU and RAM)")
-            # set the number of vCPUs and amount of RAM
-            self._set_vcpus_ram(self.vcpus, self.ram)
+            if self.allocate_vcpus_ram:
+                log.info("Update GNS3 VM settings (CPU and RAM)")
+                # set the number of vCPUs and amount of RAM
+                self._set_vcpus_ram(self.vcpus, self.ram)
 
             # start the VM
             try: