Add certificate manager instance for bmcweb

Added bitbake recipe to instantiate phoshor-certificate-manager
service for bmcweb certificates.

Caters for installing/replacing of bmcweb certificates.
Specifying instance arguments through env file

Tested:
1) Verified phosphor-certificate-manger instance for bmcweb
is running
2) Verified Installing, Replacing of certificates using Redfish

Change-Id: I2666896b8953377cbfaab748665703883892d721
Signed-off-by: Marri Devender Rao <devenrao@in.ibm.com>
diff --git a/recipes-phosphor/certificate/phosphor-bmcweb-cert-config/env b/recipes-phosphor/certificate/phosphor-bmcweb-cert-config/env
new file mode 100644
index 0000000..af4899a
--- /dev/null
+++ b/recipes-phosphor/certificate/phosphor-bmcweb-cert-config/env
@@ -0,0 +1,12 @@
+#D-Bus object path
+#example: /xyz/openbmc_project/certs/server/https
+ENDPOINT=https
+
+#Path for the certificate file
+CERTPATH=/etc/ssl/certs/https/server.pem
+
+#Units to restart
+UNIT=bmcweb.service
+
+#Type of the service client/server
+TYPE=server