docs(doxyfile): Add ecosystem-standard ALIASES for @thread_safety and @performance (#434)

Align Doxyfile with ecosystem documentation standards by adding custom
ALIASES from monitoring_system to all libraries. This enables consistent
use of @thread_safety and @performance tags across the ecosystem.

Part of kcenon/common_system#472

Author: kcenon

Doxyfile

@@ -284,6 +284,8 @@ PREDEFINED             = HAS_MESSAGING_FEATURES \
 EXPAND_AS_DEFINED      =
 SKIP_FUNCTION_MACROS   = YES
 
+ALIASES                = "thread_safety=@par Thread Safety:^^" \
+                         "performance=@par Performance:^^"
 TAGFILES               =
 GENERATE_TAGFILE       =
 ALLEXTERNALS           = NO