Added better reporting of estimted tsv numbers
Added a (commented-out) code chunk for monolithic IC thermal simulation

Replaces most materials with silicon
Added missing CR to wlatdri console output
Added file to sweep through different levels of 3D integration for SB test case
[BUG] passing repeater fraction per level into GNR repeater routine now
Automated SB 3D test case geometry shrink
Added single core SB+GNR test case
Minor tweaks to test case plots
Added metal layer comparison in power_coparison
Added pn_cu vector to wlatdri to track what pitch WOULD have been chosen if copper was used instead of GNRs