Bug fix - Num Ref Idx

Following changes to slice header parsing

• Use the Default Num Ref Idx active values when an override is not present.

Downgrade to go 1.12

v0.24.3

Downgrade go to 1.12

Bug Fixes

Bug fixes & corresponding tests

1. Ref Pic List Mod - correction to do while loop
2. Pred Weight - Correct param
3. Dec Ref Pic Marking - correction to do while loop

Ref Pic List Mod parser corrections

So bug fixes to slice header parsing

Slice Header Parse support

v0.24.0

Change all instances of edgeware to jaypadia-frame