Add dict dot

[josephmancuso]

This PR adds a new feature called the config helper.

This config helper allows you to fetch configuration values from your application using dot notation rather than importing and fetching information.

To use this helper you will need to import it like so:

from masonite.helpers import config

and then use it in a controller to fetch any values from your config. Take this example where you want to check if your application is in debug mode:

from masonite.helpers import config

def show(self):
    if config('config.application.debug'): #== True
        # do something

Notice this is case insensitive. It will look for both config.application.DEBUG as well as the lowercase version.

but whats even cooler is we can actually go an unlimited amount of layers deep into a dictionary:

lets say we have a config like this:

# config/storage.py

DRIVERS = {
    's3': {
        'locations': {
             'west': 'https://west.amazon.com/...',
             'east': 'https://east.amazon.com/...',
         }
    }
}

from masonite.helpers import config

def show(self):
    if config('config.storage.drivers.s3.locations.west'): #== 'https://west.amazon.com/...'
        # do something

We can also set a default value if none exists:

from masonite.helpers import config

def show(self):
    if config('config.storage.drivers.s3.locations.north', 'http://north.amazon.com/...'):
        # do something

[coveralls]

Coverage increased (+0.05%) to 89.791% when pulling e3ea966 on add-dict-dot into 043bc11 on master.