Add support for platform api 0.7 and 0.8

[sambhav]

Summary

Adds support for platform api 0.7 and 0.8

Resolves #1333
Resolves #1331

[codecov]

Codecov Report

Merging #1334 (4187d7b) into main (fe92411) will decrease coverage by 0.03%.
The diff coverage is 71.70%.

❗ Current head 4187d7b differs from pull request most recent head 1f855b9. Consider uploading reports for the commit 1f855b9 to get more accurate results

@@            Coverage Diff             @@
##             main    #1334      +/-   ##
==========================================
- Coverage   80.86%   80.83%   -0.02%     
==========================================
  Files         144      144              
  Lines        9152     9186      +34     
==========================================
+ Hits         7400     7425      +25     
- Misses       1283     1292       +9     
  Partials      469      469              

Flag	Coverage Δ
os_linux	79.48% <71.70%> (-0.05%)	⬇️
os_macos	74.12% <71.70%> (+0.04%)	⬆️
os_windows	80.70% <71.70%> (-0.02%)	⬇️
unit	80.83% <71.70%> (-0.02%)	⬇️

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[sambhav]

@buildpacks/platform-maintainers please review :)

[dfreilich]

In general, this looks great, and is a very clean implementation. Could you also merge in the change from #1331 (or just do it by hand), in order to fully bump the Lifecycle version, once it's partially bumped here?

[sambhav]

@dfreilich done :) - also added some tests for the missing coverage.

[sambhav]

Link to pack binaries with platform 0.8 support (check artifacts section) https://github.com/buildpacks/pack/actions/runs/1489391193