Add filters to code analytics

What does this MR do?

This MR adds the filters required for the new Code Analytics feature.

This is behind the code_analytics feature flag introduced in !17618 (merged)

The empty state svg and copy will be updated in an additional MR.

Code Analytics plan

The MR is part of the following plan

Code_hotspots

Screenshots

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Screenshot_2019-10-10_at_13.57.13 Screenshot_2019-10-10_at_13.57.31
Screenshot_2019-10-10_at_13.58.06 Screenshot_2019-10-10_at_13.57.48

Does this MR meet the acceptance criteria?

Conformity

Edited by Brandon Labuschagne

Merge request reports

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