feat: Device properties from Java/.NET SDKs

[bruno-garcia]

See: getsentry/sentry-dotnet-protocol#33

[codecov-io]

Codecov Report

Merging #185 into master will increase coverage by 0.03%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #185      +/-   ##
==========================================
+ Coverage   64.65%   64.68%   +0.03%     
==========================================
  Files          83       83              
  Lines        8996     9004       +8     
==========================================
+ Hits         5816     5824       +8     
  Misses       3180     3180

Impacted Files	Coverage Δ
general/src/protocol/contexts.rs	96.36% <100%> (+0.18%)	⬆️

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