Improved checkpointing

What's Changed

• ckpt: enable empty checkpoint name by @Borda in #72
• ckpt: use checkpoint name as version by @Borda in #92
• ckpt: use default user's teamspace by @Borda in #73
• ckpt: uploading with queue on background by @Borda in #77
• update mixin's methods by @Borda in #76
• feat: metadate for tracing integrations by @Borda in #85
• update pickling with joblib by @Borda in #87
• feat: save/load TF Keras model by @Borda in #89

New Contributors

• @tchaton made their first contribution in #74

---

Full Changelog: v0.1.5...v0.1.6