mdns Make mdns responder case-insensitive

From the RFC:

The simple rules for case-insensitivity in Unicast DNS [RFC1034] [RFC1035] also apply in Multicast DNS; that is to say, in name comparisons, the lowercase letters "a" to "z" (0x61 to 0x7A) match their uppercase equivalents "A" to "Z" (0x41 to 0x5A). Hence, if a querier issues a query for an address record with the name "myprinter.local.", then a responder having an address record with the name "MyPrinter.local." should issue a response. No other automatic equivalences should be assumed.

Mar 12 '25 01:03 abrender

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 63.75%. Comparing base (3140ee3) to head (670d0e3). :warning: Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #220      +/-   ##
==========================================
+ Coverage   62.77%   63.75%   +0.98%     
==========================================
  Files           1        1              
  Lines         916      916              
==========================================
+ Hits          575      584       +9     
+ Misses        263      255       -8     
+ Partials       78       77       -1

Flag	Coverage Δ
go	`63.75% <100.00%> (+0.98%)`	:arrow_up:
wasm	`0.00% <0.00%> (ø)`

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Mar 12 '25 01:03 codecov[bot]

Ready for review :) Sorry for the noisy checks.

Mar 12 '25 02:03 abrender

@Sean-Der - thanks so much for your work on this project. Any objection or concerns with merging this PR?

(PS - The 2 tests that I've added both fail at master, but succeed with this PR).

All the best, Avi B

Mar 18 '25 15:03 abrender