Add script for generating an MIT license report

[pilt]

Added a script that reports explicit licensing details to Sundsvalls kommun under the MIT license. The goal is to provide clarity for potential integrators like myself, enabling a better understanding of which components are licensed under MIT and identifying areas where other licenses, such as AGPL, might be in use.

High-level stats:

backend/
  Extension       MIT      Total   Files%    MIT Lines    Tot Lines   Lines%
  ----------------------------------------------------------------------
  .ini              0          2     0.0%            0           32     0.0%
  .lock             0          1     0.0%            0         4606     0.0%
  .mako             0          1     0.0%            0           17     0.0%
  .py              50        455    11.0%         3314        27096    12.2%
  .template         0          1     0.0%            0           40     0.0%
  .toml             0          1     0.0%            0           73     0.0%
  .yml              0          3     0.0%            0          206     0.0%
  ----------------------------------------------------------------------
  Total            50        464    10.8%         3314        32070    10.3%

frontend/
  Extension       MIT      Total   Files%    MIT Lines    Tot Lines   Lines%
  ----------------------------------------------------------------------
  .cjs              0          3     0.0%            0           82     0.0%
  .css              0          2     0.0%            0          130     0.0%
  .example          0          1     0.0%            0            6     0.0%
  .html             0          2     0.0%            0           25     0.0%
  .js               0         29     0.0%            0         2170     0.0%
  .json             0          7     0.0%            0          222     0.0%
  .sh               0          1     0.0%            0           14     0.0%
  .svelte          61        203    30.0%         4342        11319    38.4%
  .ts              23         77    29.9%         1015        10849     9.4%
  .yaml             0          2     0.0%            0         3684     0.0%
  no_extension        0         13     0.0%            0          121     0.0%
  ----------------------------------------------------------------------
  Total            84        340    24.7%         5357        28622    18.7%

Full output can be found here: https://gist.github.com/pilt/7c6222d1280c7a4b8fd7c50be626ad1f