Implement apt interceptors

examples/ubuntu.scm

@@ -0,0 +1,17 @@
+(use-modules
+ (ordo playbook)
+ (ordo play)
+ (ordo interceptor)
+ (ordo interceptor apt))
+
+(playbook
+ #:name "APT operations"
+ #:plays (list
+          (play
+           #:name "Test APT operations"
+           ;;#:host '(tagged #:ubuntu)
+           #:host "localhost"
+           #:interceptors (list
+                           (apt:update)
+                           (apt:dist-upgrade)
+                           (map apt:install (list "curl" "ca-certificates"))))))