Import buildifier

This patch sets up buildifier to run as part of CI. It can also be run
manually via `//tools/lint:buildifier`.

As a consequence, I needed to make the whole repo conform.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: Ic41c97b17255813b6c21aef40ab2f8a216683a2c
diff --git a/debian/clapack.BUILD b/debian/clapack.BUILD
index 31e127e..39a160e 100644
--- a/debian/clapack.BUILD
+++ b/debian/clapack.BUILD
@@ -1,8 +1,8 @@
-licenses(["notice"])
-
 load("@//tools/build_rules:fortran.bzl", "f2c_copts")
 load("@//tools/build_rules:select.bzl", "compiler_select")
 
+licenses(["notice"])
+
 genrule(
     name = "create_sysdep1",
     srcs = ["F2CLIBS/libf2c/sysdep1.h0"],