Support CakePHP 3.0

[justinyost]

:warning: WIP :warning:

• [x] Move File Structure Around
• [x] Update to use Namespaces
• [ ] Verify/Update code as needed to ensure working
• [ ] Other things I'm not thinking of at the moment

[beporter]

Signal boost: https://github.com/loadsys/CakePHP-ConfigReadShell/pull/6#issuecomment-72706046

[beporter]

This should be operational, with the caveat that since you can't install the 3.0 version of this plugin via composer yet, you need to monkey with your consuming app's composer.json file.

To test manually in a base Cake 3.0 skeleton app:

• Clone into myapp/plugins/ConfigRead/.

• Edit myapp/composer.json to include:

  "autoload": {
    "psr-4": {
        "ConfigRead\\": "./plugins/ConfigRead/src"
    }
  },
  "autoload-dev": {
    "psr-4": {
        "ConfigRead\\Test\\": "./plugins/ConfigRead/tests"
    }
  },

• Edit config/bootstrap.php to include Plugin::load('ConfigRead');

[justinyost]

Verified as basic feature set working in Cake3.