VPD tool : dumpInventory & dumpObject

VPD tool has four options.

a) Dump Complete Inventory - no additional arguments are needed.
b) Dump Specific Object - by providing the object name.
c) Read the keyword - by providing the object name, record name and keyword to be read.
d) Write/Update the keyword - by providing the object name,  record name, keyword and the value to be updated.

{value - in ascii or hex & all the other arguments in string}

"--help" option provides details on how to use the above mentioned options.

This commit has implementation of dump inventory and dump specific object.

Output:

---------Dump Inventory---------
Not displaying the complete output.

root@rainier:/tmp# ./vpd-tool -i
[
    {
        "/system": {
            "LocationCode": "U9105.22A.SIMP10R",
            "Model": "9105-22A",
            "SerialNumber": "SIMP10R",
            "type": "xyz.openbmc_project.Inventory.Item.System"
        },
        "/system/chassis": {
            "LocationCode": "U78DA.ND1.1234567",
            "type": "xyz.openbmc_project.Inventory.Item.Chassis"
        },
        .
        .
        .
        .
       and so on..
]

---------Dump Object----------

root@rainier:/tmp# ./vpd-tool -o -O /system/chassis/motherboard/ebmc_card_bmc
[
    {
        "/system/chassis/motherboard/ebmc_card_bmc": {
            "CC": "6B58",
            "DR": "EBMC            ",
            "FN": "F191014",
            "LocationCode": "U78DA.ND1.1234567-P0-C5",
            "PN": "PN12345",
            "SN": "YL6B58010000",
            "type": "xyz.openbmc_project.Inventory.Item.Bmc"
        }
    }
]

Flag to enable VPD tool:
There is no seperate flag for VPD tool.
ibm-parser flag will generate the vpd-tool binary.

Steps to build and generate the executable using meson:
meson -Denabled=ibm-parser build
ninja -C build

Test:
Tested on simics.

Signed-off-by: PriyangaRamasamy <priyanga24@in.ibm.com>
Change-Id: I712f7ad4303eefa68f232685b6b0e53646f859f5
diff --git a/Makefile.am b/Makefile.am
index 56a3b57..683ec0f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -9,7 +9,8 @@
 	args.hpp \
 	utils.hpp \
         keyword_vpd_parser.hpp \
-	ibm_vpd_type_check.hpp
+	ibm_vpd_type_check.hpp \
+	vpd_tool_impl.hpp
 
 if IBM_PARSER
 noinst_HEADERS += \
@@ -30,6 +31,14 @@
 ibm_read_vpd_LDFLAGS = $(SDBUSPLUS_LIBS) $(PHOSPHOR_LOGGING_LIBS)
 ibm_read_vpd_CXXFLAGS = $(SDBUSPLUS_CFLAGS) $(PHOSPHOR_LOGGING_CFLAGS)
 
+bin_PROGRAMS += vpd-tool
+vpd_tool_SOURCES = \
+        vpd_tool.cpp \
+        vpd_tool_impl.cpp
+
+vpd_tool_LDFLAGS = $(SDBUSPLUS_LIBS)
+vpd_tool_CXXFLAGS = $(SDBUSPLUS_CFLAGS)
+
 else
 # Be sure to build these before compiling
 BUILT_SOURCES = \