fw update: pldm package parser tests

Test that the package parser correctly parses a pldm fw package.

https://github.com/openbmc/docs/blob/master/designs/code-update.md

Tested: unit tests pass

Change-Id: If21cd4c7136a7a0297eb4b3cadbec92c277af27c
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/test/common/meson.build b/test/common/meson.build
new file mode 100644
index 0000000..f808149
--- /dev/null
+++ b/test/common/meson.build
@@ -0,0 +1 @@
+subdir('pldm')