Insert component before first component

[jcordes73]

Please describe the feature that you want to propose

As an integration designer sometimes I have the need to insert a component before the first component

Example:

Using the SQL component as a producer, but now I would like to add a Timer or Quartz component to run the SQL statement periodically.

Current situation:

Right now I only replace the first component, loosing all configurations on it.

Relates to: #80

[jcordes73]

This also applies to components inside container elements like split, also there I can't insert an element (in this case the seda component)

[lordrip]

As a first step, we could allow users to move steps regardless being consumer / producer

[lordrip]

Take into consideration steps that might have different parameters depending on whether they are consumer / producer