Config as YAML files instead of python. Live translation of logs and TTS

[danic85]

This will allow module creators to add a corresponding config yaml file for their module that will be made available automatically in the framework via the Config.get([module], [parameter]) syntax.

Also contains a method get_all_pins() to display the list of pins in use by the various modules. Useful for conflict detection and module planning.

Currently untested

Creating a module
Create the python module (described in documentation)
Create a corresponding .yaml file in the config directory.
Populate the file with your module configuration parameters
Add a docs section that includes the following:

• description of the module
• events including pub and sub with details of published and subscribed events

module_name:
    pin: 12 #This must be the name of the pin parameter if present
    something_else: value 
    docs:
      description: "Your module description"
      events:
        sub:
          - eventtopic:
              description: "Description of event."
              args:
                - name: type
        pub:
          - eventtopic:
              description: "Description of event."
              args:
                - name: type

The config.py script will import all yaml files in this directory and merge them into a single config, accessible via Config.get([module], [parameter]). Ensure that your name does not conflict with other existing modules.

Live Translation
The live translation module translation.py allows live translation of logs and TTS output via google translate.

Call translate.request(msg) and optionally specify the source and destination languages.

The config/translation.yml specifies the default languages.