Release v6.78.0

What's Changed

• feat(pnr): route progress and congestion in pnr.log (#769) by @hernloh in #775
• feat(pnr): buffer_ports for hardened blocks; slew/cap violators in results (#772) by @hernloh in #776
• fix(pnr): cut rows under hard placement blockages before tap insertion (#773) by @hernloh in #777
• feat(pnr): floorplan.pins side/group/exact pin constraints (#105) by @hernloh in #778
• feat(pnr): floorplan.macros fixed location, orientation and halo (#105) by @hernloh in #779
• feat(pnr): explicit die/core area, core cut-outs and declarative PDN (#105) by @hernloh in #780
• fix(config): ModelConfig.get_model_name() returns the model name (#774) by @hernloh in #781

Full Changelog: v6.77.0...v6.78.0