allow to create a new page and apply templates

[akitl]

with this modification you can now create a new page and use template to fill content

i use this feature like that in my personal dokuwiki :

<form>
textbox "Cible"
action pagemod pj:dossiers:@@Cible@@ add_rapport createPage pagetemplates:rapporttemplate
action pagemod pj:dossiers add_rapport

createPage is the first arg to indicate if you want create a new page if dosent exist
pagetemplates:rapporttemplate is the second argument to indicate if you wante to fill your new page with a another page