x64/misc.bin: openssl libraries

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Http Server: Add optional configuration file

This adds an optional configuration file under /etc/httpserver.conf

The configuration file is a Yaml formated file, with the optional server
configuration. It is been read before the server starts.

Configuration priority is now as follow, first configuration file,
second command line parameters are taken (though it is not very common
in httpserver) and last the default values.

This patch removes the default values from main, and leave it to be added
last in run method.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Cloud init: Add httpserver-module

httperver module allows setting the httpserver configuration by the cloud
init.

For example to set the port to 4000 and allow cross site access

httpserver:
  access-allow: true
  port: 4000

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Cloud-init: Change from a run command to a model

Include functionality should be identical regardless of the data source.
To make it clearer, that include is not only of script commands. The
include functionality was moved to its own module.

This patch also moves the load-from-cloud functionality to the include.

Now the local init file can have an option to read from cloud source.
This way it is possible to set an image with local configuration but
without attempting to call cloud source.

Cloud source has an option to decide how to handle missing cloud source.

This functionality was dropped when the cloud source were introduce and
is now put back.

The following options can be used with the include module:

include:
    - load-from-cloud:
        ignore-missing-source: true
    - file: /usr/mgmt/tmp.yaml
    - remote:
        server: 254.1.1.1
        path: /usr/data

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>