Track group repo analytics pageviews in snowplow

What does this MR do?

For #215209 (closed)

Tracks a view_group_repository_analytics event in snowplow when the Group Repositories Analytics page is loaded.

Output of http://localhost:9090/micro/good after a pageview in gdk

[
  {
    "rawEvent": {
      "api": {
        "vendor": "com.snowplowanalytics.snowplow",
        "version": "tp1"
      },
      "parameters": {
        "e": "se",
        "se_va": "28",
        "eid": "42c33054-a308-4253-b3c2-98ce5fadf7a7",
        "tna": "gl",
        "stm": "1600268478239",
        "tv": "rb-0.6.1",
        "se_ac": "group_repository_analytics_pageview",
        "se_la": "group_id",
        "se_ca": "Groups::Analytics::RepositoryAnalyticsController",
        "p": "srv",
        "dtm": "1600268478238"
      },
      "contentType": null,
      "source": {
        "name": "ssc-1.0.1-stdout$",
        "encoding": "UTF-8",
        "hostname": "localhost"
      },
      "context": {
        "timestamp": "2020-09-16T15:01:18.348Z",
        "ipAddress": "172.17.0.1",
        "useragent": "Ruby",
        "refererUri": null,
        "headers": [
          "Timeout-Access: <function1>",
          "Accept-Encoding: gzip, deflate;q=0.6, identity;q=0.3",
          "Accept: */*",
          "User-Agent: Ruby",
          "Connection: close",
          "Host: localhost:9090"
        ],
        "userId": "96f54790-4947-4172-a506-5e9222292ab4"
      }
    },
    "eventType": "struct",
    "schema": "iglu:com.google.analytics/event/jsonschema/1-0-0",
    "contexts": [],
    "event": {
      "app_id": null,
      "platform": "srv",
      "etl_tstamp": "2020-09-16T15:01:18.413Z",
      "collector_tstamp": "2020-09-16T15:01:18.348Z",
      "dvce_created_tstamp": "2020-09-16T15:01:18.238Z",
      "event": "struct",
      "event_id": "42c33054-a308-4253-b3c2-98ce5fadf7a7",
      "txn_id": null,
      "name_tracker": "gl",
      "v_tracker": "rb-0.6.1",
      "v_collector": "ssc-1.0.1-stdout$",
      "v_etl": "snowplow-micro-1.0.0-common-1.3.2",
      "user_id": null,
      "user_ipaddress": "172.17.0.1",
      "user_fingerprint": null,
      "domain_userid": null,
      "domain_sessionidx": null,
      "network_userid": "96f54790-4947-4172-a506-5e9222292ab4",
      "geo_country": null,
      "geo_region": null,
      "geo_city": null,
      "geo_zipcode": null,
      "geo_latitude": null,
      "geo_longitude": null,
      "geo_region_name": null,
      "ip_isp": null,
      "ip_organization": null,
      "ip_domain": null,
      "ip_netspeed": null,
      "page_url": null,
      "page_title": null,
      "page_referrer": null,
      "page_urlscheme": null,
      "page_urlhost": null,
      "page_urlport": null,
      "page_urlpath": null,
      "page_urlquery": null,
      "page_urlfragment": null,
      "refr_urlscheme": null,
      "refr_urlhost": null,
      "refr_urlport": null,
      "refr_urlpath": null,
      "refr_urlquery": null,
      "refr_urlfragment": null,
      "refr_medium": null,
      "refr_source": null,
      "refr_term": null,
      "mkt_medium": null,
      "mkt_source": null,
      "mkt_term": null,
      "mkt_content": null,
      "mkt_campaign": null,
      "contexts": {},
      "se_category": "Groups::Analytics::RepositoryAnalyticsController",
      "se_action": "group_repository_analytics_pageview",
      "se_label": "group_id",
      "se_property": null,
      "se_value": 28,
      "unstruct_event": null,
      "tr_orderid": null,
      "tr_affiliation": null,
      "tr_total": null,
      "tr_tax": null,
      "tr_shipping": null,
      "tr_city": null,
      "tr_state": null,
      "tr_country": null,
      "ti_orderid": null,
      "ti_sku": null,
      "ti_name": null,
      "ti_category": null,
      "ti_price": null,
      "ti_quantity": null,
      "pp_xoffset_min": null,
      "pp_xoffset_max": null,
      "pp_yoffset_min": null,
      "pp_yoffset_max": null,
      "useragent": "Ruby",
      "br_name": null,
      "br_family": null,
      "br_version": null,
      "br_type": null,
      "br_renderengine": null,
      "br_lang": null,
      "br_features_pdf": null,
      "br_features_flash": null,
      "br_features_java": null,
      "br_features_director": null,
      "br_features_quicktime": null,
      "br_features_realplayer": null,
      "br_features_windowsmedia": null,
      "br_features_gears": null,
      "br_features_silverlight": null,
      "br_cookies": null,
      "br_colordepth": null,
      "br_viewwidth": null,
      "br_viewheight": null,
      "os_name": null,
      "os_family": null,
      "os_manufacturer": null,
      "os_timezone": null,
      "dvce_type": null,
      "dvce_ismobile": null,
      "dvce_screenwidth": null,
      "dvce_screenheight": null,
      "doc_charset": null,
      "doc_width": null,
      "doc_height": null,
      "tr_currency": null,
      "tr_total_base": null,
      "tr_tax_base": null,
      "tr_shipping_base": null,
      "ti_currency": null,
      "ti_price_base": null,
      "base_currency": null,
      "geo_timezone": null,
      "mkt_clickid": null,
      "mkt_network": null,
      "etl_tags": null,
      "dvce_sent_tstamp": "2020-09-16T15:01:18.239Z",
      "refr_domain_userid": null,
      "refr_dvce_tstamp": null,
      "derived_contexts": {},
      "domain_sessionid": null,
      "derived_tstamp": "2020-09-16T15:01:18.347Z",
      "event_vendor": "com.google.analytics",
      "event_name": "event",
      "event_format": "jsonschema",
      "event_version": "1-0-0",
      "event_fingerprint": null,
      "true_tstamp": null
    }
  }
]

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