native project restructure; headers are not jni dependent

.hgignore

com.oracle.truffle.r.native/builtinlibs/Makefile

com.oracle.truffle.r.native/fficall/jni/Makefile

com.oracle.truffle.r.native/include/Makefile

com.oracle.truffle.r.native/include/ed_Rinterface

com.oracle.truffle.r.native/include/ed_Rinternals

com.oracle.truffle.r.native/include/jni/Makefile

....truffle.r.native/include/src/R_ext/GraphicsDevice.h.stub

....truffle.r.native/include/src/R_ext/GraphicsEngine.h.stub

com.oracle.truffle.r.native/include/src/libintl.h

com.oracle.truffle.r.native/library/lib.mk

com.oracle.truffle.r.native/run/Makefile