Set up http server

- set up http server for a) handling the service requests and b)
serving the static assets for the ocis-web extension
- align the server command with other ocis-extensions, including config
variable naming

pkg/config/config.go

@@ -24,6 +24,19 @@ type LDAPSchema struct {
 	Groups      string
 }
 
+// HTTP defines the available http configuration.
+type HTTP struct {
+	Addr      string
+	Namespace string
+	Root      string
+}
+
+// GRPC defines the available grpc configuration.
+type GRPC struct {
+	Addr      string
+	Namespace string
+}
+
 // Server configures a server.
 type Server struct {
 	Name             string
@@ -42,6 +55,8 @@ type Log struct {
 // Config merges all Account config parameters.
 type Config struct {
 	LDAP   LDAP
+	HTTP   HTTP
+	GRPC   GRPC
 	Server Server
 	Log    Log
 }