Preserve CFG until BAT, use it to check call cont landing pads, encode them in secondary entry points table

Created using spr 1.3.4

Author: aaupov

bolt/docs/BAT.md

@@ -44,7 +44,6 @@ The general layout is as follows:
 ```
 Hot functions table
 Cold functions table
-Call continuation landing pads table (optional)
 
 Functions table:
 |------------------|