[VOQ][saidump] Enhance saidump with new option -r to parser the JSON file and displays/format the right output, fix compiling error

configure.ac

@@ -249,6 +249,7 @@ AC_OUTPUT(Makefile
           unittest/lib/Makefile
           unittest/vslib/Makefile
           unittest/syncd/Makefile
+          unittest/saidump/Makefile
           pyext/Makefile
           pyext/py2/Makefile
           pyext/py3/Makefile)

saidump/Makefile.am

@@ -2,8 +2,11 @@ AM_CXXFLAGS = $(SAIINC) -I$(top_srcdir)/lib
 
 bin_PROGRAMS = saidump
 
-saidump_SOURCES = saidump.cpp
+saidump_SOURCES = main.cpp saidump.cpp
 saidump_CPPFLAGS = $(CODE_COVERAGE_CPPFLAGS)
 saidump_CXXFLAGS = $(DBGFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS_COMMON) $(CODE_COVERAGE_CXXFLAGS)
 saidump_LDADD = -lhiredis -lswsscommon -lpthread -L$(top_srcdir)/meta/.libs -lsaimetadata -lsaimeta \
 				-L$(top_srcdir)/lib/.libs -lsairedis -lzmq $(CODE_COVERAGE_LIBS)
+
+noinst_LIBRARIES = libsaidump.a
+libsaidump_a_SOURCES = saidump.cpp

saidump/main.cpp

@@ -0,0 +1,19 @@
+#include "saidump.h"
+
+using namespace syncd;
+
+int main(int argc, char **argv)
+{
+    SWSS_LOG_ENTER();
+    swss::Logger::getInstance().setMinPrio(swss::Logger::SWSS_INFO);
+
+    SaiDump m_saiDump;
+
+    if(SAI_STATUS_SUCCESS != m_saiDump.handleCmdLine(argc, argv))
+    {
+        return EXIT_FAILURE;
+    }
+
+    m_saiDump.dumpFromRedisDb();
+    return EXIT_SUCCESS;
+}