Improved class hierachy and added new tia topo examples

What's Changed

• Spicelib integration by @NooriDan in #3
• Spicelib integration by @NooriDan in #4
• Spicelib integration by @NooriDan in #5
• added Tunable tia run data by @NooriDan in #6
• Tunable tia by @NooriDan in #7
• Tunable tia by @NooriDan in #8

Full Changelog: spicelib-v1.0.0...v1.1.0

Ngspice with EA and Sigmoid Loss

updating the main with features added to the spicelib integration

• Sigmoid loss function added... showed great convergence speed improvements.
• New example... 5T OTA circuit was added
• Optimizer checkpointing was added
• Class hierarchies were enhanced to allow better code reusability
• Plotting and design space exploration

Todo

• Need to think of a better way to switch the optimization algorithms... especially going from EA to BO or even a user-defined one.
• add "harder" design problems... i.e., larger number of design variables...
• support pspice or hspice... perhaps very easy with spicelibe module but there is always hiccups.
• Explore automatic layout generation with BAG

What's Changed

• Spicelib integration by @NooriDan in #1
• Spicelib integration by @NooriDan in #2

New Contributors

• @NooriDan made their first contribution in #1

Full Changelog: https://github.com/NooriDan/SymXplorer/commits/spicelib-v1.0.0