OO-2696 user management: add info button to user management

src/main/java/org/olat/admin/_content/systemroles.html

-<h4>$r.translate("menu.menuaccess")</h4>
+<legend>$r.contextHelpWithWrapper("User management")
+<h4>$r.translate("menu.menuaccess")</h4></legend>
 $r.translate("sysroles.intro")
\ No newline at end of file

src/main/java/org/olat/admin/user/UserCreateController.java

@@ -175,6 +175,7 @@ class NewUserForm extends FormBasicController {
 	protected void initForm(FormItemContainer formLayout, Controller listener, UserRequest ureq) {						
 		setFormTitle("title.newuser");
 		setFormDescription("new.form.please.enter");
+		setFormContextHelp("User management");
 		formLayout.setElementCssClass("o_sel_id_create");
 		
 		usernameTextElement = uifactory.addTextElement(LOGINNAME, "username", 128, "", formLayout);

src/main/java/org/olat/admin/user/_content/usermanagerUsersearch.html

 <fieldset>
-	<legend>$r.translate("title.usersearch")</legend>
+	<legend>$r.translate("title.usersearch") $r.contextHelpWithWrapper("User management")</legend>
 	$r.render("usersearch")
 </fieldset>
\ No newline at end of file

src/main/java/org/olat/admin/user/delete/_content/deleteTabbedPane.html

+$r.contextHelpWithWrapper("User management")
 $r.render("userDeleteTabP")
\ No newline at end of file

src/main/java/org/olat/admin/user/delete/_content/directdelete.html

 <p class="o_note">
-	$r.translate("delete.users.direct.header")
+	$r.translate("delete.users.direct.header") $r.contextHelpWithWrapper("User management")
 </p>
 $r.render("usersearch")
 <div>

src/main/java/org/olat/admin/user/imp/_content/importindex.html

-<h3>$r.translate("title")</h3>
+<legend>$r.contextHelpWithWrapper("User management")
+<h3>$r.translate("title")</h3></legend>
 <p>$r.translate("import.description0")</p>
 <p>$r.translate("import.description1")</p>
 <ul>