hexchat-python3: missing dependency & files

- Was missing a dependency on python3-cffi
- The associated python module had been left
  in the main package.

srcpkgs/hexchat/template

@@ -1,7 +1,7 @@
 # Template file for 'hexchat'
 pkgname=hexchat
 version=2.16.0
-revision=2
+revision=3
 build_style=meson
 configure_args="-Ddbus=enabled -Dtls=enabled -Dwith-text=false
  -Dwith-perl=/usr/bin/perl -Dwith-python=python3
@@ -49,9 +49,10 @@ hexchat-perl_package() {
 hexchat-python3_package() {
 	lib32disabled=yes
 	short_desc+=" - Python3 plugin"
-	depends="${sourcepkg}-${version}_${revision}"
+	depends="${sourcepkg}-${version}_${revision} python3-cffi"
 	pkg_install() {
 		vmove usr/lib/hexchat/plugins/python.so
+		vmove usr/lib/hexchat/python
 	}
 }