Add some file to gitignore
tree5b6f15ead5be082b3549f6a2b68b80d4fe60e9a4
-rw-r--r-- 442 .gitignore
-rw-r--r-- 391 .gitmodules
drwxr-xr-x - Languages
-rw-r--r-- 3582 build.txt
drwxr-xr-x - common
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - ext
drwxr-xr-x - src
drwxr-xr-x - test