Add bmcweb to meta-ibm layer for redfish support

Put behind nginx and only activate when /redfish is
queried via https.

Testing: Verified that with this change in bmcweb:
https://gerrit.openbmc-project.xyz/#/c/openbmc/bmcweb/+/11518/
that redfish commands can successfully be sent via nginx
on the witherspoon qemu model.

Change-Id: I97509dc3484deffd06c3d60db710eb3b17dfccb5
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend b/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend
index 7b61d8c..0b0a9c9 100644
--- a/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend
+++ b/recipes-phosphor/packagegroups/packagegroup-obmc-apps.bbappend
@@ -1,2 +1,2 @@
 RDEPENDS_${PN}-logging += "ibm-logging"
-RDEPENDS_${PN}-extras += "nginx"
+RDEPENDS_${PN}-extras += "nginx bmcweb"