[GR-2798] Implemented Rf_*norm, Rf_ftrunc and others.

...oracle/truffle/r/ffi/impl/common/JavaUpCallsRFFIImpl.java

...rc/com/oracle/truffle/r/ffi/impl/nodes/FFIUpCallNode.java

...m/oracle/truffle/r/ffi/impl/nodes/RandFunctionsNodes.java

...com/oracle/truffle/r/ffi/impl/upcalls/StdUpCallsRFFI.java

.../src/com/oracle/truffle/r/ffi/processor/FFIProcessor.java

...rc/com/oracle/truffle/r/ffi/processor/RFFIUpCallNode.java

...oracle.truffle.r.native/fficall/src/common/rffi_upcalls.h

...e.truffle.r.native/fficall/src/common/rffi_upcallsindex.h

...racle.truffle.r.native/fficall/src/truffle_common/Rmath.c

...ime/src/com/oracle/truffle/r/runtime/nmath/RMultinom.java

...e/src/com/oracle/truffle/r/runtime/nmath/distr/Pnorm.java

...fle.r.test.native/packages/testrffi/testrffi/R/testrffi.R

...uffle.r.test.native/packages/testrffi/testrffi/src/init.c

...e.r.test.native/packages/testrffi/testrffi/src/testrffi.c

...e.r.test.native/packages/testrffi/testrffi/src/testrffi.h

...est.native/packages/testrffi/testrffi/tests/simpleTests.R

mx.fastr/copyrights/overrides