base: Added some extra logging macros

LOG, LOG_ERR.  LOG_ERR will always compile to a /stderr/ print.  LOG,
on the other hand, may not actually do anything if VERBOSE_LOGS is
not 1.  By default it is 0, so it must be defined when compiling to
enable - hence the adjustment of the Makefile.

Makefile

@@ -9,7 +9,7 @@ OBJECTS:=$(patsubst %,$(DIST)/%.o, $(UNITS))
 
 LDFLAGS=
 GFLAGS=-Wall -Wextra -Wpedantic -std=c23 -I./include/
-DFLAGS=-ggdb -fsanitize=address -fsanitize=undefined
+DFLAGS=-ggdb -fsanitize=address -fsanitize=undefined -DVERBOSE_LOGS=1
 RFLAGS=-O3
 
 MODE=release