Added System migration stuff

Some reorganisation

system/system.json

@@ -2,7 +2,7 @@
     "name": "l5r5e",
     "title": "Legend of the Five Rings (5th Edition)",
     "description": "This is a game system, multilingual in En/FR/ES, for Legend of the Five Rings (5th Edition) by <a href='https://edge-studio.net/'>Edge Studio</a> <p> - Join the official Discord server: <a href='https://discord.gg/foundryvtt'> Official Discord</a></p><p> - Rejoignez la communauté Francophone: <a href='https://discord.gg/pPSDNJk'>Francophone Discord</a></p>",
-    "version": "1.0.0",
+    "version": "1.1.0",
     "minimumCoreVersion": "0.7.9",
     "compatibleCoreVersion": "0.7.9",
     "manifestPlusVersion": "1.0.0",
@@ -159,5 +159,5 @@
     ],
     "url": "https://gitlab.com/teaml5r/l5r5e",
     "manifest": "https://gitlab.com/teaml5r/l5r5e/-/raw/master/system/system.json",
-    "download": "https://gitlab.com/teaml5r/l5r5e/-/jobs/artifacts/v1.0.0/raw/l5r5e.zip?job=build"
+    "download": "https://gitlab.com/teaml5r/l5r5e/-/jobs/artifacts/v1.1.0/raw/l5r5e.zip?job=build"
 }