Allow auspice code to be imported via node's `require`

This commit begins exporting some functions which may then be available to node packages which import auspice (e.g. via `const auspice = require("auspice")`)

These are intended to be "helper functions" for those wishing to write their own auspice server, i.e. a server which handles the GET requests originating from a auspice client.

index.js

@@ -0,0 +1,16 @@
+/** This file exports the functions / objects available to node packages
+ * which import auspice (e.g. via `const auspice = require("auspice")`)
+ *
+ * These are intended to be "helper functions" for those wishing to write
+ * their own auspice server, i.e. a server which handles the GET
+ * requests originating from a auspice client.
+ */
+
+
+const convertFromV1 = require("./cli/server/convertJsonSchemas").convertFromV1;
+const parseNarrativeFile = require("./cli/server/parseNarrative").default;
+
+module.exports = {
+  convertFromV1,
+  parseNarrativeFile
+};

package.json

@@ -13,6 +13,7 @@
   "bin": {
     "auspice": "./auspice.js"
   },
+  "main": "index.js",
   "scripts": {
     "create-data-dir": "./scripts/create-data-dir.sh",
     "postinstall": "npm run create-data-dir",