Added CMS_API.request: WSF_REQUEST to ease dev of ROC CMS code.

- Removed CMS_REQUEST_UTIL
  - centralize a few request related code into CMS_API
Added CMS_API.user, CMS_API.set_user (CMS_USER), ... and user related routines.

Refactored Auth related code
  - added various abstractions to factorize implementation and harmonize solutions.
  - revisited the logout strategy.
  - updated the account info page, and remove info user should not care about.
  - simplified the process, and encourage auth module to follow same design.

Added CMS_LINK helper routines to modify the related query string.
Removed CMS_USER.profile (and related routines)
   - It was not used so far.
   - it will probably a specific module later, if needed.

Update various module to avoid fetching user from sql directly, and let this task to CMS_USER_API.

Removed CMS_NODE_API.node_author (a_node: CMS_NODE): detachable CMS_USER,
   - as the info is already in CMS_NODE.author

Added CMS_RESPONSE.redirection_delay, if ever one code want to redirect after a few seconds.
Added the request uri info to the not found cms response.

library/model/src/user/cms_user.e

@@ -65,9 +65,6 @@ feature -- Access
 	email: detachable READABLE_STRING_8
 			-- User email.
 
-	profile: detachable CMS_USER_PROFILE
-			-- User profile.
-
 	creation_date: DATE_TIME
 			-- Creation date.
 
@@ -189,26 +186,6 @@ feature -- Change element
 			email_set: email = a_email
 		end
 
-	set_profile (prof: like profile)
-			-- Set `profile' with `prof'.
-		do
-			profile := prof
-		ensure
-			profile_set: profile = prof
-		end
-
-	set_profile_item (k: READABLE_STRING_8; v: READABLE_STRING_8)
-		local
-			prof: like profile
-		do
-			prof := profile
-			if prof = Void then
-				create prof.make
-				profile := prof
-			end
-			prof.force (v, k)
-		end
-
 	set_last_login_date (dt: like last_login_date)
 		do
 			last_login_date := dt
@@ -284,7 +261,6 @@ feature -- Status change
 			status_set:  status = a_status
 		end
 
-
 feature -- User status
 
 	not_active: INTEGER = 0