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/keyUsage.decipherOnly.crt b/tests/data_files/parse_input/keyUsage.decipherOnly.crt
new file mode 100644
index 0000000..7c37978
--- /dev/null
+++ b/tests/data_files/parse_input/keyUsage.decipherOnly.crt
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----