Make directed_test support static libs

1.Make directed_test apps linked against static libs
of hip, rocclr, rocr, roct and amd_comgr.
2.Remove custom_target amdhip64_static_combiner.
3.Support EXCLUDE_HIP_LIB_TYPE <static|shared>.
4.Simplify argument list parsing.
5.Fix hip_pch.o missing issue in samples' build.
6.Fix some original small bugs.

Change-Id: I30f5e65367613152ce86b80b13e1c9f2a28da803

samples/0_Intro/square/CMakeLists.txt

@@ -7,6 +7,9 @@ cmake_minimum_required(VERSION 3.10)
 # Search for rocm in common locations
 list(APPEND CMAKE_PREFIX_PATH /opt/rocm/hip /opt/rocm)
 
+# create square.cpp
+execute_process(COMMAND sh -c "/opt/rocm/hip/bin/hipify-perl ../square.cu > ../square.cpp")
+
 # Find hip
 find_package(hip)