Wip add upgrades

This is a big pull request

Thanks to @SandonV 's help we made the following changes:

- fixed firefly-giant-x suite (it had only one commit from @tmuthamizhan and all others were missing files)
- renamed dumpling-giant-x and firefly-giant-x to dumpling-giant and firefly-giant
- removed all old -x suites and 'old' directory

As final result we have on giant branch 3 upgrade suits: dumpling-firefly-giant,  dumpling-giant,  firefly-giant

Pls review:
@liewegas 
@tmuthamizhan 
@wusui 
@jdurgin