sync current Backend with Raptor. No functional changes.

[serge-dsa]

Motivate of the pull request

• To address an existing issue. If so, please add GH or Jira ID here:
• Breaking new feature. If so, please describe details in the description part.
  Propagating current Backend development to Raptor to make sure it works on Raptor level.
  This should not affect any thing, no functional changes.

Which submodule does this change impact ?

• Backend
• FOEDAG_rs
• IP_Catalog
• Raptor_Tools
• yosys_verific_rs
• zephyr-rapidsi-dev
• Github CI

What does this pull request change?

Propagating current Backend development to Raptor to make sure it works on Raptor level.
This should not affect any thing, no functional changes.

Verified that the following tests passed locally before PR was created.

• make tests/batch_all
• Describe or list testcases run specifically to verify these updates if not covered above.

Impact of the pull request

• Require a change on Quality of Results (QoR)
• Break back-compatibility. If so, please list who may be influenced.