Improved debug apparatus

[bsneed]

• Removed #if DEBUG requirement for relaying signals to segment.
• Added sendDebugSignalsToSegment to signals config, defaults to false.
• Added obfuscateDebugSignals to signals config, defaults to true.
• Added tests & internal test infra.

New dev setup to effectively create event generators in the Segment UI would be something like this ...

let signalsConfig = SignalsConfiguration(
            writeKey: "signals_test2",
#if DEBUG
            sendDebugSignalsToSegment: true, // send signals to segment.
            obfuscateDebugSignals: false // don't obfuscate symbols
#endif
        )
Signals.shared.useConfiguration(signalsConfig)

[codecov]

Codecov Report

Attention: Patch coverage is 89.74359% with 4 lines in your changes missing coverage. Please review.

Project coverage is 29.68%. Comparing base (3b381b2) to head (7fcb61a).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...Live/Signals/Broadcasters/SegmentBroadcaster.swift	80.00%	3 Missing ⚠️
Sources/AnalyticsLive/Signals/Configuration.swift	93.75%	1 Missing ⚠️

❌ Your project status has failed because the head coverage (29.68%) is below the target coverage (50.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #27       +/-   ##
===========================================
+ Coverage   18.81%   29.68%   +10.87%     
===========================================
  Files          37       37               
  Lines        3040     3055       +15     
===========================================
+ Hits          572      907      +335     
+ Misses       2468     2148      -320     

Files with missing lines	Coverage Δ
...alyticsLive/Signals/Minilytics/MiniAnalytics.swift	43.22% <100.00%> (+43.22%)	⬆️
Sources/AnalyticsLive/Signals/Signals.swift	62.56% <100.00%> (+62.56%)	⬆️
.../AnalyticsLive/Signals/Utilities/Obfuscation.swift	78.12% <ø> (+75.09%)	⬆️
Sources/AnalyticsLive/Signals/Configuration.swift	93.93% <93.75%> (+93.93%)	⬆️
...Live/Signals/Broadcasters/SegmentBroadcaster.swift	78.26% <80.00%> (+78.26%)	⬆️

... and 3 files with indirect coverage changes

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