feat: enable command operators for httproute filter directresponse

[6ixfalls]

What type of PR is this?

Feature

What this PR does / why we need it:
Enables command operators in the directResponse of an HTTPRoute filter. Implemented the same way as backendTrafficPolicy's directResponse (11248b4).

Which issue(s) this PR fixes:

N/A

Release Notes: Yes

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.82%. Comparing base (9df84d5) to head (67cfc16).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8183      +/-   ##
==========================================
- Coverage   73.82%   73.82%   -0.01%     
==========================================
  Files         241      241              
  Lines       36609    36613       +4     
==========================================
+ Hits        27027    27028       +1     
- Misses       7677     7679       +2     
- Partials     1905     1906       +1     

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[arkodg]

LGTM thanks, would be great if e2e can highlight this as well