screenshot helper relies on selenium so include it in recommended.txt

git-svn-id: svn+ssh://svn.code.sf.net/p/migrid/code/trunk@6238 b75ad72c-e7d7-11dd-a971-7dbc132099af

Author: jonasbardino

recommended.txt

@@ -1,4 +1,4 @@
-# migrid core dependencies on a format suitable for pip install as described on
+# migrid full dependencies on a format suitable for pip install as described on
 # https://pip.pypa.io/en/stable/reference/requirement-specifiers/
 future
 # NOTE: python-3.6 and earlier versions require older pyotp, whereas 3.7+
@@ -52,5 +52,8 @@ psutil
 #sslkeylog
 pyenchant
 
+# Screenshoot helper requires selenium
+selenium
+
 # NOTE: core dependencies are listed in requirements.txt and can be installed
 #       by pointing pip there