bios: Implement BIOSConfig

Load the parsed json configs into memory.
And provid APIs to get/set on bios tables.

Signed-off-by: John Wang <wangzqbj@inspur.com>
Change-Id: Ida1fedc923d31afc61dd2d4aec70d81bb6a90ae9
diff --git a/test/meson.build b/test/meson.build
index 827f9fc..5c03866 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -21,6 +21,7 @@
   'libpldmresponder_bios_test',
   'libpldmresponder_bios_attribute_test',
   'libpldmresponder_bios_string_attribute_test',
+  'libpldmresponder_bios_config_test',
   'libpldmresponder_pdr_state_effecter_test',
   'libpldmresponder_bios_table_test',
   'libpldmresponder_platform_test',