hgweb: add raw manifest template

templates/raw/manifest.tmpl

@@ -0,0 +1,3 b''
+{header}
+{dentries%manifestdirentry}{fentries%manifestfileentry}
+{footer}

templates/raw/map

@@ -14,3 +14,6 b" diffblock = '#lines#'"
 filediff = filediff.tmpl
 fileannotate = fileannotate.tmpl
 annotateline = '#author#@#rev#: #line#'
+manifest = manifest.tmpl
+manifestdirentry = 'drwxr-xr-x {basename}\n'
+manifestfileentry = '{permissions|permissions} {size} {basename}\n'