Add -Wall -Werror options. and fix build error 76/194476/2 accepted/tizen/unified/20181205.154822 submit/tizen/20181205.014753
-rw-r--r-- 92 AUTHORS
-rw-r--r-- 1308 CMakeLists.txt
-rwxr-xr-x 13443 LICENSE
-rw-r--r-- 11558 LICENSE.APLv2.0
-rw-r--r-- 212 NOTICE
drwxr-xr-x - bmp
drwxr-xr-x - common
drwxr-xr-x - gif
drwxr-xr-x - imgcv
drwxr-xr-x - imgp
drwxr-xr-x - jpeg
drwxr-xr-x - magick
drwxr-xr-x - packaging
drwxr-xr-x - png