add needle-index to SecondaryOutputData variables

Author: thiasB

definitions/variable.json

@@ -2145,5 +2145,16 @@
     ],
     "specifier": "ls",
     "units": "%"
+  },
+  {
+    "long_name": "Broadleaf to Needleleaf Index",
+    "products": [
+      "SecondaryOutputData"
+    ],
+    "sectors": [
+      "biomes"
+    ],
+    "specifier": "needle-index",
+    "units": "none"
   }
 ]

pattern/ISIMIP2b/SecondaryOutputData/biomes.json

@@ -0,0 +1,15 @@
+{
+  "file": [
+    "(?P<model>[a-z0-9-]+)",
+    "(?P<climate_forcing>[a-z0-9-]+)",
+    "(?P<bias_adjustment>[a-z0-9-]+)",
+    "(?P<climate_scenario>[a-z0-9-]+)",
+    "(?P<soc_scenario>[a-z0-9-]+)",
+    "(?P<sens_scenario>[a-z0-9-]+)",
+    "(?P<variable>[a-z0-9]+)(-(?P<crop>[a-z0-9]+)-(?P<irrigation>(firr|cirr|noirr))|-(?P<pft>[a-z0-9-]+))?",
+    "(?P<region>(global))",
+    "(?P<time_step>[a-z0-9-]+)",
+    "(?P<start_year>\\d{4})",
+    "(?P<end_year>\\d{4})"
+  ]
+}

schema/ISIMIP2b/SecondaryOutputData/biomes.json

@@ -0,0 +1,66 @@
+{
+  "type": "object",
+  "required": [
+    "specifiers"
+  ],
+  "properties": {
+    "specifiers": {
+      "type": "object",
+      "required": [
+        "model",
+        "climate_forcing",
+        "bias_adjustment",
+        "climate_scenario",
+        "soc_scenario",
+        "sens_scenario",
+        "variable",
+        "region",
+        "time_step"
+      ],
+      "properties": {
+        "model": {
+          "type": "string"
+        },
+        "climate_forcing": {
+          "type": "string"
+        },
+        "bias_adjustment": {
+          "type": "string"
+        },
+        "climate_scenario": {
+          "type": "string"
+        },
+        "soc_scenario": {
+          "type": "string"
+        },
+        "sens_scenario": {
+          "type": "string"
+        },
+        "variable": {
+          "type": "string"
+        },
+        "pft": {
+          "type": "string"
+        },
+        "crop": {
+          "type": "string"
+        },
+        "irrigation": {
+          "type": "string"
+        },
+        "region": {
+          "type": "string"
+        },
+        "time_step": {
+          "type": "string"
+        },
+        "start_year": {
+          "type": "number"
+        },
+        "end_year": {
+          "type": "number"
+        }
+      }
+    }
+  }
+}