Support proxy for maven

[tochi-y]

wget or git supports environment value 'http_proxy', but maven does not support. So this ansible playbook failed in execution maven under http proxy even if you set 'http_proxy'.

This playbook needs maven proxy settings in settings.xml as follows .

<proxies>
  <proxy>
      <id>proxy00</id>
      <active>true</active>
      <protocol>http</protocol>
      <username>{username}</username>
      <password>{pass}</password>
      <host>{host}</host>
      <port>{port}</port>
      <nonProxyHosts>local.net|some.host.com</nonProxyHosts>
  </proxy>
  <proxy>
      <id>proxy01</id>
      <active>true</active>
      <protocol>https</protocol>
      <username>{username}</username>
      <password>{pass}</password>
      <host>{host}</host>
      <port>{port}</port>
      <nonProxyHosts>local.net|some.host.com</nonProxyHosts>
  </proxy>
</proxies>