feat: more options to ipfs.files.add

Author: Moejoe90

src/files/add.js

@@ -41,6 +41,12 @@ module.exports = (send) => {
     } else if (opts.hashAlg != null) {
       qs.hash = opts.hashAlg
     }
+    if (opts['only-hash'] != null) {
+      qs['only-hash'] = opts['only-hash']
+    }
+    if (opts.pin != null) {
+      qs.pin = opts.pin
+    }
 
     const request = { path: 'add', files: files, qs: qs, progress: opts.progress }