Bitsandbytes quantization ISQ support

[EricLBuehler]

[github-actions[bot]]

Code Metrics Report

  ===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 C Header                2           35           28            0            7
 Dockerfile              1           41           22           10            9
 JSON                   12          105          104            0            1
 Python                 63         2706         2339           70          297
 Shell                   1           57           22           18           17
 Plain Text              3         3723            0         2413         1310
 TOML                   18          598          532            2           64
 YAML                    2           21           19            2            0
-------------------------------------------------------------------------------
 Jupyter Notebooks       4            0            0            0            0
 |- Markdown             2           77           32           31           14
 |- Python               2          205          178            1           26
 (Total)                            282          210           32           40
-------------------------------------------------------------------------------
 Markdown               43         3326            0         2521          805
 |- BASH                 6          101           98            0            3
 |- JSON                 1           12           12            0            0
 |- Python               7          121          109            0           12
 |- Rust                12          406          344            0           62
 |- TOML                 2           75           63            0           12
 (Total)                           4041          626         2521          894
-------------------------------------------------------------------------------
 Rust                  286        87287        78390         1804         7093
 |- Markdown           138         1483           25         1350          108
 (Total)                          88770        78415         3154         7201
===============================================================================
 Total                 435        97899        81456         6840         9603
===============================================================================
  

[sempervictus]

@EricLBuehler - how viable is this PR at this point? Worth pulling into CI to test?