added more .gitignore files (make test)
-rw-r--r-- 24 .gitignore
-rw-r--r-- 2081 Makefile
-rw-r--r-- 3314 README
drwxr-xr-x - backends
drwxr-xr-x - bigint
drwxr-xr-x - frontends
drwxr-xr-x - kernel
drwxr-xr-x - passes
drwxr-xr-x - techlibs
drwxr-xr-x - tests