Function movements

* string functions mstr*() are moved to string_utils.c
* allocation wrappers are moved to utils.h
* printf_* functions are moved to log.h

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>

src/meson.build

@@ -4,7 +4,7 @@ deps = [
 	dependency('xcb', version: '>=1.9.2')
 ]
 
-srcs = ['compton.c', 'win.c', 'c2.c', 'x.c', 'config.c', 'diagnostic.c']
+srcs = ['compton.c', 'win.c', 'c2.c', 'x.c', 'config.c', 'diagnostic.c', 'string_utils.c']
 
 cflags = []