Copy test certificates files from development

Copy updated test certificates and related data (keys, CSR, etc.) from
development. This replaces certificates that will expire on 2023-09-07,
causing the unit tests to fail. This also adds new data files that are not
used, and moves some files.

The replacement data is good until 2023-12-31.

The update causes some parsing unit tests to fail because the new
certificates have a different expiry date. This will be fixed in a
subsequent commit.

```
git checkout dc2d7cce02a273f6ec6a7cd78512dfeaf633a3a5 -- tests/data_files tests/src/test_certs.h tests/src/certs.c
```

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/tests/data_files/parse_input/server9.req.sha256 b/tests/data_files/parse_input/server9.req.sha256
new file mode 100644
index 0000000..0ef9ef0
--- /dev/null
+++ b/tests/data_files/parse_input/server9.req.sha256
@@ -0,0 +1,12 @@
+-----BEGIN CERTIFICATE REQUEST-----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+-----END CERTIFICATE REQUEST-----