Enhanced signal handler

What's Changed

• removed unused imports by @R1j1t in #19
• added functionalty to specify the signal to handle by @R1j1t in #20

Full Changelog: v0.2...v0.4

Added checkpoint capability

Added checkpoint code, which creates a STOPCAR near the wall time limit and exits elegantly.

What's Changed

• Added checkpointing code by @R1j1t in #17
• prepared for release by @R1j1t in #18

Full Changelog: v0.1...v0.2

KulTools release (beta) on `pip`

What's Changed

• Fixes and readme by @DexterAntonio in #1
• updated gitignore by @JiaweiGuo-0313 in #2
• feature: vibrational analysis by @R1j1t in #8
• added tagging utils to kultools by @R1j1t in #9
• Added NMR analysis by @R1j1t in #10
• Feature/package by @R1j1t in #11
• release 0.1 on pip by @R1j1t in #12

New Contributors

• @DexterAntonio made their first contribution in #1
• @JiaweiGuo-0313 made their first contribution in #2
• @R1j1t made their first contribution in #8

Full Changelog: https://github.com/kul-group/kultools/commits/v0.1