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<https://github.com/The-OpenROAD-Project/OpenLane/pull/1675|#1675 Add hierachical STA support>
Pull request opened by <https://github.com/kareefardi|kareefardi>
+ Add `EXTRA_SPEFS`  
+ Add `VERILOG_NETLISTS`  
+ Add `run_sta_script` used in multicorner sta  
+ Support sta in `or_issue.py`  
+ Support sta in `run_tcl_script`  
+ Check if regex defined in `FP_PDN_MACRO_HOOKS` has a match. Fixes <https://github.com/The-OpenROAD-Project/OpenLane/issues/1599|#1599>  
~ Wrap `set_global_connections` around a flag since it is not supported by opensta  
~ Run multicorner sta using standalone sta application for hierarchical  
sta support  
~ Move `sta_multi_corner.tcl` to `scripts/sta/multi_corner.tcl`  
~ Don't delete target directory of `-save` for multicorner spef files  
- Remove `report_design_area` in `multi_corner.tcl` since it is no supported  
by opensta
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>
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<https://github.com/The-OpenROAD-Project/OpenLane/pull/1675|#1675 Hier sta>
Pull request ready for review by <https://github.com/kareefardi|kareefardi>
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>