Feature 0.6 (#33)

# Release v0.6.0

The main change is the introduction of a plugin manager to install the plugins+dependencies on demand.
This makes the release versions (both windows EXE and docker image) much smaller, and allow users to decide which functionalities they want to use.

## IMPORTANT

From version 0.6 onward `python` and `pip` need to be installed on the system.
See more below in the [Changes](#changes) section.

- Windows: https://www.python.org/downloads/windows/
  - **NOTE**: make sure to check the box that says "Add Python to PATH" so that pip can be found by the server script without having to make any assumptions

- Linux: Use your package manager (e.g. `sudo apt install python3 python3-pip`)

## Changes

- Removed the frozen executable from the release files in favor of an Automatic1111 stile batch script
  - Even with the plugin manager, installing some dependencies that requiers actual compilation by invoking pip from within the frozen executable was giving non trivial to fix trouble.\
    For this reason I decided to axe the PyInstaller frozen EXE all together and go with a batch script that will:
    - Allow user to more easily set environment variables (a few of the most relevant ones are already set as empty in the script)
    - Create or reuse a virtual environment in a folder `venv` in the same directory as the script
    - Install the minimum required packages in it to run the server
    - Run the server
- Added a plugin manager to install/uninstall plugins on demand
  - The installed plugins can be controlled via the new version of the firefox extension or directly using the
    `manage_plugins/` endpoint.
  - The plugins will by be installed under `$OCT_BASE_DIR/plugins` which by default will be under your user profile (e.g. `C:\Users\username\.ocr_translate` on windows). \
    If you have trouble with space under `C:\` consider setting the `OCT_BASE_DIR` environment variable to a different location.
  - The plugin data is stored in a JSON file inside the project [plugins_data.json](blob/v0.6.0/ocr_translate/plugins_data.json)
  - Version/Scope/Extras of a package to be installed can be controlled via environment variables

        OCT_PKG_<package_name(uppercase)>_[VERSION|SCOPE|EXTRAS]

    (eg to change torch to version A.B.C you would set `OCT_PKG_TORCH_VERSION="A.B.C"`).
    If the package name contains a `-` it should be replaced with `_min_` in the package name
  - Removed env variable `AUTOCREATE_VALIDATED_MODELS` and relative server initialization.
    Now models are created/activated or deactivated via the plugin manager, when the respective plugin is installed/uninstalled.
- Streamlined docker image to also use the `run_server.py` script for initialization.
- Added plugin for `ollama` (https://github.com/ollama/ollama) for translation using LLMs
  - Note ollama needs to be run/installed separately and the plugin will just make calls to the server.
  - Use the `OCT_OLLAMA_ENDPOINT` environment variable to specify the endpoint of the ollama server
    ([see the plugin page for more details](https://github.com/Crivella/ocr_translate-ollama))
- Added plugin for `PaddleOCR` (https://github.com/PaddlePaddle/PaddleOCR) (Box and OCR) (seems to work very well
  with chinese).
  - The default versions installed by the `plugin_manager` of `paddlepaddle` (`2.5.2` on linux and `2.6.1` on windows)
    might not work for every system as there can be underlying failures in the C++ code that the plugin uses.
    The version installed can be controlled using the environment variable `OCT_PKG_PADDLEPADDLE_VERSION`.
- Added possibility to specify extra `DJANGO_ALLOWED_HOSTS` and a server bind address via environment variables. (Fixes #30)
- Manual model is not implemented as an entrypoint anymore (will work also without recreating models).
- OCR models can now use a `tokenizer` and a `processor` from different models.
- Added caching of the languages and allowed box/ocr/tsl models for faster response times on the handshake endpoint.
- New endpoint `run_tsl_xua` made to work with `XUnity.AutoTranslator` (https://github.com/bbepis/XUnity.AutoTranslator)
- Improved API return codes
## Fixes

- FIx #26 
- Fix #30

Fix bug in CD

Bumped version

Feature 0.4 (#18)

* Improved README

* Modified models to implement single/merged OCR logic

* Implemented single/merged OCR logic in ocr_tsl pipeline

* Modified tests to implent new logic and expected return values

* Changed _box_detection API

* Modified OCR initializer

* Added and manually tested `merge_single_result`

* Added tests for `merge_single_result`

* Improved CD workflow

* Bump v0.4.0

* Better logging and small fixes

* Updated CHANGELOG

* Re-commentd plugin lines in settings

* Squashed migrations from 0.3.2 to 0.4.0

* Fixes #11 

* Fixes #17

Fix bug when trie is unavailable

Changelog and minor fixes

Feature trie cleanup (#10)

* Added word frequencies

* Added missing word 'has'

* Added tests and fixed wrong behaviours

* Improved languages default options

* Bump version

Added delay between testpypi and pypi install

Feature plugginability (#6)

* WIP - migrating from hardcoded model loading/usage to plugins

* Abstracted logic for `OCRBoxModel`s

* Reimplemented proper usage of ENV variables in the premade plugins.

* Added entrypoints to JSON of validated models.

* WIP - remaking tests to reflect changes

* Fixed tests for 100% coverage

* Updated README with info on writing plugins

* Bump version number

* Added changelog file

* pylint

* Fix needed to carry entrypoints with pyinstaller