UE Testing, Logging & Profiling

Use when writing or running Unreal Engine tests, adding logging, or profiling a build. Also use when the user mentions 'UE_LOG', 'log category', 'DEFINE_LOG_CATEGORY', 'UE_LOGFMT', 'verbosity', 'check', 'ensure', 'ensureMsgf', 'verify', 'IMPLEMENT_SIMPLE_AUTOMATION_TEST', 'automation test', 'TEST_CLASS', 'CQTest', 'AFunctionalTest', 'latent command', 'Unreal Insights', 'TRACE_CPUPROFILER_EVENT_SCOPE', 'TRACE_BOOKMARK', 'stat unit', 'SCOPE_CYCLE_COUNTER', 'memreport', 'DrawDebugLine', 'UE_VLOG', 'gameplay debugger', 'ShowDebug', 'console command', 'CVar', or 'why is my frame time bad'. For module and target wiring, see ue-module-build-system; for editor tooling, see ue-edi…