feat: Automate HPLIP driver and plugin installation

[FoxxMD]

• Removes HPLIP docker stage in favor of installation at run time based on ENV (HP_AIO)
• Automates downloading and installing matching HPLIP binary plugin based on libsane-hpaio installed version using ENV (HP_PLUGIN)

Closes #701 #724

This abides by the "no additional backends in docker" intention because it does not install anything unless the user explicitly sets either HP_AIO or HP_PLUGIN envs.

• Use HP_AIO=true to install only libsane-hpaio dependency at container start
• Use HP_PLUGIN=true to install libsane-hpaio and HPLIP binary plugin at container start

The scripts also check for install status of the dependency and plugin so they will only run if not already installed.

Additionally, the script that installs the plugin, hplip.sh, is distribution agnostic so it can be used in any local install of scanservjs as long as the OS has the equivalent hpaio driver installed (which also installs hp-plugin).

A docker image is built with these changes at foxxmd/scanservjs:latest

[ameer1234567890]

Could you build an image for arm64. My amd64 machine is currently broken (motherboard fried due to lightening).

[FoxxMD]

@ameer1234567890 i haven't tested the arm build but it is now published on foxxmd/scanservjs:latest

[ameer1234567890]

Sorry, I was wrong. It should be arm, not arm64

[FoxxMD]

@ameer1234567890 ok, ive published arm/v7 (same as scanservjs) now.

[ameer1234567890]

I tested it and my HP scanner is detected perfectly. However, unlike the original scanservjs docker image, my Canon scanner is not detected now.