Add styles and CZ.NIC branding

[jiri-janousek]

• Directory eidas_node/cznic/
  • __init__.py: Helper constants TEMPLATE_DIR and STATIC_DIR.
  • templates/eidas_node/connector/base.html: Based on eidas_selector/templates/eidas_selector/selector.html
  • templates/eidas_node/proxy_service/base.html: Likewise.
  • static/eidas_node/css/screen.css: Based on eidas_selector/static/eidas_selector/css/screen.css
  • static/eidas_node/img/logo.svg: Logo CZ.NIC.
• Deployment settings:
  • Add from eidas_node import cznic.
  • Add STATICFILES_DIRS = [cznic.STATIC_DIR].
  • Add TEMPLATES['DIRS'] = [cznic.TEMPLATE_DIR].

...
from eidas_node import cznic
...

STATIC_ROOT = '/var/www/eidas/static'
STATIC_URL = '/static/'
STATICFILES_DIRS = [cznic.STATIC_DIR]

...

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'APP_DIRS': True,
        'DIRS': [cznic.TEMPLATE_DIR],
        'OPTIONS': {
            'context_processors': [
                'django.contrib.messages.context_processors.messages',
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.template.context_processors.i18n',
            ]
        }
    }
]