ERP5: python language support

Some eggs to provide "intelliense" for python withing ERP5

/reviewed-on nexedi/slapos!649

stack/erp5/buildout.cfg

@@ -517,6 +517,9 @@ eggs = ${neoppod:eggs}
   networkx
 # Needed for checking ZODB Components source code
   pylint
+  jedi
+  yapf
+  typing
   pytracemalloc
   xlrd
 
@@ -828,3 +831,10 @@ responses = 0.10.6
 # Required by:
 # responses = 0.10.6
 cookies = 2.2.1
+
+jedi = 0.15.1
+parso = 0.5.1
+
+yapf = 0.28.0
+
+typing = 3.7.4.1