Implementation of BMC VMI certificate manager

This manager is to create and manage entries
for each host CSR request which needs to shared
with host.

this commits implements dbus interfaces
https://gerrit.openbmc-project.xyz/c/openbmc/phosphor-dbus-interfaces/+/31808

This feature can be enabled by using below feature flag
"--enable-ca-cert-extension"

Testby:
Creating CSR entries
Deleting  entries
Setting properties

Signed-off-by: Ravi Teja <raviteja28031990@gmail.com>
Change-Id: I24829b839feac6264f32053b9be63daef6599379
diff --git a/bmc-vmi-ca/ca_cert_entry.cpp b/bmc-vmi-ca/ca_cert_entry.cpp
new file mode 100644
index 0000000..94c0a25
--- /dev/null
+++ b/bmc-vmi-ca/ca_cert_entry.cpp
@@ -0,0 +1,18 @@
+#include "config.h"

+

+#include "ca_cert_entry.hpp"

+

+#include "ca_certs_manager.hpp"

+

+namespace ca

+{

+namespace cert

+{

+

+void Entry::delete_()

+{

+    // Remove entry D-bus object

+    manager.erase(id);

+}

+} // namespace cert

+} // namespace ca