Initial commit for phosphor certificate manager

Certificate management application allows to replace the
existing certificate and private key file with another
(possibly CA signed Certificate and private key file.

Change-Id: I1129cc92ca4aae5f84cb304dda9073cc74781009
Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..ea71ad6
--- /dev/null
+++ b/.clang-format
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