Setup profileList for LIS hub

Based on request in https://2i2c.freshdesk.com/a/tickets/1348,
which asks us to set as default the same limits as right now,
and offer a higher limit as an option

config/clusters/2i2c-uk/lis.values.yaml

@@ -54,10 +54,20 @@ jupyterhub:
       # https://hub.docker.com/r/lisacuk/lishub-base
       name: "lisacuk/lishub-base"
       tag: "581a714"
-    memory:
-      # increase as requested via https://2i2c.freshdesk.com/a/tickets/1066
-      guarantee: 512M
-      limit: 2G
+    profileList:
+      # Setup as requested in https://2i2c.freshdesk.com/a/tickets/1348
+      - display_name: Regular Instance
+        description: "Provides 512M - 2G of RAM"
+        default: true
+        kubespawner_override:
+          mem_limit: 2G
+          mem_guarantee: 512M
+      - display_name: Large Instance
+        description: "Provides 1G - 4G of RAM"
+        default: true
+        kubespawner_override:
+          mem_limit: 4G
+          mem_guarantee: 1G
   hub:
     config:
       JupyterHub: