libpldmresponder: implement handler for GetPDR

This commit implements the GetPDR command as defined in DSP0248 v1.1.1.
Multipart PDR transfers are still not implemented.

Signed-off-by: Deepak Kodihalli <dkodihal@in.ibm.com>
Change-Id: Ic520a914e8228b723521151f4ba1eed947179047
diff --git a/test/meson.build b/test/meson.build
index 93135fd..1ddb598 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -22,7 +22,8 @@
   'libpldm_bios_test',
   'libpldmresponder_bios_test',
   'libpldmresponder_pdr_state_effecter_test',
-  'libpldmresponder_bios_table_test'
+  'libpldmresponder_bios_table_test',
+  'libpldmresponder_platform_test'
 ]
 
 if get_option('oem-ibm').enabled()