feat(api): add EC2 Auto Scaling groups to the cloud explorer

Create groups from a launch template (in the default subnets unless given),
change their minimum, desired and maximum capacity, replace or remove an
instance, and follow the launches and terminations TheCloud's reconciler makes.
Deleting a group terminates its instances. Scaling policies are not offered:
the runtime stores them but its alarms only drive ECS scaling.

packages/api/src/cloud-spi/serviceCatalog.ts

@@ -74,6 +74,13 @@ export const SERVICE_CATALOG = {
         order: 20,
     },
     serverless: {displayName: 'Serverless', iconKey: 'serverless', group: 'Compute', order: 30},
+    autoscaling: {
+        displayName: 'Auto Scaling',
+        displayNameByCloud: {aws: 'EC2 Auto Scaling'},
+        iconKey: 'autoscaling',
+        group: 'Compute',
+        order: 15,
+    },
     containers: {
         displayName: 'Containers',
         displayNameByCloud: {gcp: 'Cloud Run'},