Set initial value for takeoff altitude was added

[juanscelyg]

In this PR was added take value from parameters file to be assigned at initialize the connector node. If you need to assign this value as shown below:

connector_node:
  ros__parameters:
    use_sim_time: true
    connector_types: [mavros]
    mavros:
      plugin: roboligo_connector_mavros/RoboligoConnectorMavros
      init_alt: 0.75

The default value is 0.5 meters.

Also this PR added a minimal correction in setup.py in roboligo_clipkg to be index the cmakes files required to be compiled without warnings.