Fix Magic Manifest Version, Fix Klayout DEF to GDS, .bashrc (The-Open…

…ROAD-Project#790)

+ .bashrc now also copied to image root
+ klayout def2gds now supports a lef file
~ klayout def2gds fix by manually specifying a lef file
~ magic manifest updated to match actual tarball
- removed klayout def2gds shell script (worthless)
- .bashrc no longer sources /etc/bashrc

Bring back `FP_IO_MIN_DISTANCE` (The-OpenROAD-Project#705)

* Bring back FP_IO_MIN_DISTANCE

* Set io min distance default to 3

Last Minute Fixes for MPW3 (The-OpenROAD-Project#675)

Update timing signoff methodology (The-OpenROAD-Project#674)

- Removed the `-min/-max` options from read_liberty since they shouldn't be used for modeling different process corners (The-OpenROAD-Project#671). 
- Updated the base SDC file to include information about clock uncertainty, clock transition, and timing derate.
- Updated the timing/design optimizations to be done at the typical corner.
- Updated the STA script to generate the SDF file after the routing is concluded. 
- Updated the STA script to report more information like clock skew, worst slack, power, area.
- Added some fixes to the report generation to retain the log file index so that we can easily keep track of when the reports are generated.

Last Minute Fixes for MPW3 (The-OpenROAD-Project#675)

Fix RTD link [skip ci] (The-OpenROAD-Project#668)

Set resistance & capacitence before running estimate_parasitics (The-…

…OpenROAD-Project#637)

[BOT] Update openroad_app (The-OpenROAD-Project#616)

openroad_app -> 7f23e5f6e6b8d36e6a8aaed6ad074902ea27c4ce

CI Changes (The-OpenROAD-Project#627)

~ PDK build now runs once, result reused
~ Designs run separately
- Removed outdated variables
- Cleanup now should always occur

Alter `make pdk` to make ngspice files (The-OpenROAD-Project#623)

~ Fixes The-OpenROAD-Project#620

Co-authored-by: Harald Pretl <harald.pretl@jku.at>