Importing NetBSD "Kyua" test framework

To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada

external/mit/lua/dist/test/table.lua

@@ -0,0 +1,12 @@
+-- make table, grouping all data for the same item
+-- input is 2 columns (item, data)
+
+local A
+while 1 do
+ local l=io.read()
+ if l==nil then break end
+ local _,_,a,b=string.find(l,'"?([_%w]+)"?%s*(.*)$')
+ if a~=A then A=a io.write("\n",a,":") end
+ io.write(" ",b)
+end
+io.write("\n")