pkg: add currency and other info (#623)

matches expected outputs from hsd

lib/pkg.js

@@ -6,16 +6,75 @@
 
 'use strict';
 
+const pkg = exports;
+
+/**
+ * Package Name
+ * @const {String}
+ * @default
+ */
+
+pkg.name = require('../package.json').name;
+
+/**
+ * Project Name
+ * @const {String}
+ * @default
+ */
+
+pkg.core = 'bcoin';
+
+/**
+ * Organization Name
+ * @const {String}
+ * @default
+ */
+
+pkg.organization = 'bcoin-org';
+
+/**
+ * Currency Name
+ * @const {String}
+ * @default
+ */
+
+pkg.currency = 'bitcoin';
+
+/**
+ * Currency Unit
+ * @const {String}
+ * @default
+ */
+
+pkg.unit = 'btc';
+
+/**
+ * Base Unit
+ * @const {String}
+ * @default
+ */
+
+pkg.base = 'satoshi';
+
+/**
+ * Config file name.
+ * @const {String}
+ * @default
+ */
+
+pkg.cfg = `${pkg.core}.conf`;
+
+/**
+ * Repository URL.
+ * @const {String}
+ * @default
+ */
+
+pkg.url = `https://github.com/${pkg.organization}/${pkg.name}`;
+
 /**
  * Current version string.
  * @const {String}
  */
 
-exports.version = 'v1.0.2';
-
-/**
- * Repository URL.
- * @const {String}
- */
-
-exports.url = 'https://github.com/bcoin-org/bcoin';
+pkg.version = require('../package.json').version;