Close #19406: Initial implementation of ensurepip

Patch by Donald Stufft and Nick Coghlan
diff --git a/.hgeol b/.hgeol
index 4e03690..aad79c2 100644
--- a/.hgeol
+++ b/.hgeol
@@ -26,6 +26,7 @@
 **.psd  = BIN
 **.tar  = BIN
 **.wav  = BIN
+**.whl  = BIN
 **.xar  = BIN
 **.zip  = BIN