WIP: Kopano Konnect und Rest API (#72)

* add a new image for konnect
* add konnect to compose file
* adapt gencerts for konnect certs
* integrate gencerts into start.sh and adapt if to only skip individual parts
* add container for kapi
* use same config for webapp and z-push as https://stash.kopano.io/projects/KGOL/repos/kweb/browse/config/legacy.go
* use example compose file in make test target
* make compose file configurable through an env variable
* remove legacy links in compose
* write certificates first to a tempfile
* remove unnecessary paths
* add option to run kapi insecure for testing
* configure openid for kopano-server
* add local playground to test functionality of konnect and kapi
* print errors and logs to stdout in web
* add extrahosts to kopano_server
* adapt extrahosts for ip command on ubuntu 18.04
* add documentation

Signed-off-by: Felix Bartels <felix@host-consultants.de>

konnect/wrapper.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+
+dockerize \
+	-wait file:///kopano/ssl/konnectd-tokens-signing-key.pem \
+	-wait file:///kopano/ssl/konnectd-encryption.key \
+	-timeout 360s
+exec konnectd serve \
+	--signing-private-key=/kopano/ssl/konnectd-tokens-signing-key.pem \
+	--encryption-secret=/kopano/ssl/konnectd-encryption.key \
+	--iss=https://$FQDN \
+	--identifier-registration-conf /etc/kopano/identifier-registration.yaml \
+	kc