Contacts Metrics: added directory search and bug fix

-Added directory search metrics
   >PeopleActivity plugin + fab onclick
   >Contacts card directory search onclick

-Fixed bugs for
    >db upgrade (upgrade only oldversion < new version not <=)
    >auto/manual merge count (was not capturing count increment
    with an existing count entry)
    >PeopleActivity plugin tab login nudge impression count (was
    tracking the event of leaving the plugin tab rather than going
    into the plugin tab)
    >NPE for getBytes() in InCallMetricsHelper.generateNudgeId()

-Consolidated InCallMetricsHelper.increaseCount to handle
all user action event types

CD-501, CD-527, CD-610

Change-Id: I6c8c2d951108d10be735365ebaf1b133cd4d52c1