Merge pull request #1 from jlingema/master

Merge of recent changes
Merge pull request #2 from jlingema/master

Merge of recent changes
Wrote quick and dirty script to construct instance placement for deserializer stage.

Also added check to ignore comments in vhdl parser.
Removed unnecessary files (present in internal repo already).
Merge pull request #3 from dinyar/master

Constraints gen script, removed VHDL code