feat: Camera awesome

[M123-dev]

What

Just adding this in here with the possibility of it getting removed in a few days. An alternative implementation of camerawesome together with ML Kit.

• It needs some more work, we have to manually trigger the analysis
• It needs some further work, when pushing above it the camera is not paused automatically
• So why did I even decide to open the PR, there is a somewhat stale discussion about the carousel and if that is the best use of the scanner, but no matter what it boils down to we'll likely need the scanner to focus on the top part and not necessarily remove the camera from the bottom of the page completely, using a dedicated camera package likely allows for more freedom to do such things. c.f. my issue Move focus point Apparence-io/CamerAwesome#272

[codecov-commenter]

Codecov Report

Merging #3790 (1e52a18) into develop (08fd134) will decrease coverage by 0.11%.
The diff coverage is 0.00%.

@@             Coverage Diff             @@
##           develop    #3790      +/-   ##
===========================================
- Coverage    10.78%   10.67%   -0.11%     
===========================================
  Files          269      272       +3     
  Lines        13405    13541     +136     
===========================================
  Hits          1446     1446              
- Misses       11959    12095     +136     

Impacted Files	Coverage Δ
...b/pages/preferences/user_preferences_dev_mode.dart	0.00% <ø> (ø)
.../lib/pages/scan/awesome_widgets/awesome_flash.dart	0.00% <0.00%> (ø)
...es/smooth_app/lib/pages/scan/camera_scan_page.dart	2.00% <0.00%> (-0.18%)	⬇️
packages/smooth_app/lib/pages/scan/scan_page.dart	2.94% <0.00%> (-0.14%)	⬇️
...lib/pages/scan/smooth_barcode_scanner_awesome.dart	0.00% <0.00%> (ø)
...p/lib/pages/scan/smooth_barcode_scanner_visor.dart	0.00% <0.00%> (ø)

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[monsieurtanuki]

Hi @M123-dev!
I'm not sure where this will lead, but we're in a kind of testing period so let's try!
I must say I'm a bit reluctant as there's a big fat chance that I won't be able to compile the app on my smartphone anymore given the packages you're adding. Well, at least I was able to use the app one month, could be worse ;)

[M123-dev]

Thanks for your review @monsieurtanuki, I applied your suggestions