Merge pull request 'add separate calendar for bda' (#54) from add_separate_calendar_for_bda into master

Reviewed-on: https://git.rz.ens.wtf/Klub-RZ/metis/pulls/54

data/calendars.json

@@ -1,9 +1,12 @@
 {
   "tree": {
     "COF": {
-      "BdA": {},
       "Évènements (COF)": {},
-      "Assemblées Générales (COF)": {}
+      "Assemblées Générales (COF)": {},
+      "BdA": {
+        "Évènements (BdA)": {},
+        "Spectacles du tirage BdA": {}
+      }
     },
     "Clubs COF": {
       "Club réseau": {},
@@ -60,7 +63,12 @@
         "short_name": "AG COF"
       },
       "r4yJZDHjwNtH8wkR": {
-        "name": "BdA"
+        "name": "Évènements (BdA)"
+      },
+      "83AkowSYPnYrjSFr": {
+        "name": "Spectacles du tirage BdA",
+	"short_name": "Spectacles",
+	"initial": false
       },
       "ZtWm3MYSi388k2yk": {
         "name": "DDR"