fix(npm): removed unnecesary directories and files from npm package

Author: alvarosabu

.npmignore

@@ -27,3 +27,6 @@ yarn.lock
 /tests
 /temp
 /templates
+/demos
+/src
+.github

.vuegenerator

@@ -6,7 +6,7 @@
   <a href="https://www.npmjs.com/package/@asigloo/vue-dynamic-forms">
     <img src="https://badgen.net/npm/v/@asigloo/vue-dynamic-forms/next" alt="Current npm version">
   </a>
-  <a href="https://bundlephobia.com/result?p=@asigloo/vue-dynamic-forms@latest">
+  <a href="https://bundlephobia.com/result?p=@asigloo/vue-dynamic-forms">
     <img src="https://flat.badgen.net/bundlephobia/min/@asigloo/vue-dynamic-forms" alt="Minified size">
   </a>
   <a href="https://vuejs.org">