Added framework as a flattened directory

Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
diff --git a/framework/data_files/pkcs7-rsa-sha256-3.pem b/framework/data_files/pkcs7-rsa-sha256-3.pem
new file mode 100644
index 0000000..0dc2fe9
--- /dev/null
+++ b/framework/data_files/pkcs7-rsa-sha256-3.pem
@@ -0,0 +1,48 @@
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+-----BEGIN PRIVATE KEY-----
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