Fixing a few issues with the spell book schema.

Adding the Reclaimed type of casting used by Sprit Shamans, which combines the best aspects of Inspired and Spontaneous casting (whereas Researched takes the worst, and then adds a little bonus).

schema/spellbook_schema.json

@@ -10,6 +10,16 @@
     "@class": {"type": "string"},
     "classRef": {"type": "string"},
     "spellInfo": {
+      "dependencies":{
+        "2":["1"],
+        "3":["2"],
+        "4":["3"],
+        "5":["4"],
+        "6":["5"],
+        "7":["6"],
+        "8":["7"],
+        "9":["8"]
+      },
       "patternProperties": {
         "^[0-9]$": {
           "properties": {
@@ -43,7 +53,8 @@
             "additionalProperties":false
           }
         }
-      }
+      },
+      "required": ["classRef"]
     },
     {
       "properties": {
@@ -68,15 +79,13 @@
       "properties": {
         "@class": {
           "enum": [
-            "org.leumasjaffe.charsheet.model.magic.impl.Researched",
-            "org.leumasjaffe.charsheet.model.magic.impl.Unearthed"
+            "org.leumasjaffe.charsheet.model.magic.impl.Researched"
           ]
         },
         "spellInfo": {
           "^[0-9]$": {
             "required": [
               "spellsPerDay",
-              "spellsPerDayRemaining",
               "spellsKnown",
               "spellsPrepared",
               "spellsPreparedPreviously"
@@ -85,11 +94,31 @@
           }
         }
       }
+    },
+    {
+      "properties": {
+        "@class": {
+          "enum": [
+            "org.leumasjaffe.charsheet.model.magic.impl.Retrieved"
+          ]
+        },
+        "spellInfo": {
+          "^[0-9]$": {
+            "required": [
+              "spellsPerDay",
+              "spellsPerDayRemaining",
+              "spellsPrepared",
+              "spellsPreparedPreviously"
+            ],
+            "additionalProperties":false
+          }
+        }
+      },
+      "required": ["classRef"]
     }
   ],
   "required": [
     "@class",
-    "classRef",
     "spellInfo"
   ],
   "type": "object"