* Restconf authentication callback (ca_auth) signature changed

* Not backward compatible: All uses of the ca-auth callback in restconf plugins must be changed
  * New version is: `int ca_auth(h, req, auth_type, authp, userp)`
    * where `auth_type` is the requested authentication-type (none, client-cert or user-defined)
    * `authp` is the returned authentication flag
    * `userp` is the returned associated authenticated user
    * and the return value is three-valued: -1: Error, 0: ignored, 1: OK
  * For more info see [clixon-docs](https://clixon-docs.readthedocs.io/en/latest/restconf.html)
* New clixon-restconf@2020-12-30.yang revision

test/test_yang_anydata.sh

@@ -21,6 +21,9 @@ fanydata=$dir/yang/anydata.yang
 funknown=$dir/yang/unknown.yang 
 fstate=$dir/state.xml
 
+# Define default restconfig config: RESTCONFIG
+restconf_config none
+
 cat <<EOF > $fanydata
 module any{
    yang-version 1.1;
@@ -277,4 +280,7 @@ testrun false true
 new "startup, treat unknown as anydata----"
 testrun true true
 
+# Set by restconf_config
+unset RESTCONFIG
+
 rm -rf $dir