Added getUserFingerprint example (see #288)
Added getUserFingerprint example (see #288)

YieldifyLabs/snowplow-javascript-tracker,juliomenendez/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker,juliomenendez/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker,juliomenendez/snowplow-javascript-tracker,fivetran/snowplow-javascript-tracker,fivetran/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker,YieldifyLabs/snowplow-javascript-tracker,fivetran/snowplow-javascript-tracker,YieldifyLabs/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker