make the configuration file more flexible

[rhmk]

add more parameters to /etc/redhat-access-insights/redhat-access-insights.conf.j2 template file, with e.g. a dictionary variable that contains the configs such as:

insight-client-config:
  loglevel: INFO
  proxy: http://myproxy:8888

Here are some examples how it could look like in the template file:

# Change log level, valid options DEBUG, INFO, WARNING, ERROR, CRITICAL. Default DEBUG
loglevel={{ insight-client-config.loglevel | default("DEBUG") }}

# URL for your proxy.  Example: http://user:[email protected]:8080
proxy={{ insight-client-config.proxy | default(omit) }}