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[niloda]

Added parameters (for RLT) in the yang file to handle header compression, just as an example to be reviewed.

A boolean attribute has been added just to activate/deactivate the functionality.

+--rw header-compression-enabled?        boolean

For devices that require more complex configuration, a list of profiles has been added, each composed of a list of protocol headers to compress or composed of the size of the area at the beginning of the packet where all included headers are compressed.

   +--ro header-compression-profile-list* [header-compression-profile-name] {hc-profile}?
    |  +--ro header-compression-profile-name         string
    |  +--ro (header-compression)?
    |     +--:(protocol-based)
    |     |  +--ro compressed-protocol-layer-list*   mw-types:protocol-layer
    |     |  +--ro mpls-payload-kind-list*           mw-types:mpls-payload
    |     +--:(header-length-based)
    |        +--ro compressed-header-length?         int16

A configuration attribute selects the profile to use.

+--rw header-compression-profile? -> ../header-compression-profile-list/header-compression-profile-name {hc-profile}? (not sure if the path is correct)

A feature hc-profile has been added to include or exclude the header compression profile support.

  feature hc-profile {
    description
      "Indicates that the device supports Header Compression profiles.";
  }

Unlike from modules inside the zip file uploaded in issue#32 the added code is NOT wrapped inside the couple of markers: