title: How to create a bmesh from a list of vertices
body: <p>In blender i can make a mesh "me" from a list of vertices like that:</p>
  
  <pre><code>me = bpy.data.meshes.new("name") 
  me.from_pydata(vertices,[],[])
  </code></pre>
  
  <p>But this function does not exist for a bmesh. What i would like to do is</p>
  
  <pre><code>bme=bmesh.new()
  bme.from_pydata(vertices,[],[])
  </code></pre>
  
  <p>How can i achieve this?</p>