Create build service to utilize the router and move logic away from command

[caendesilva]

This update refactors the static site building process to handle logic in a service, to fix #169.

As part of this refactor, the build loop no longer pulls data from the collection service, instead, the route index provided by the new Router serves as the origin of truth for what files to compile.

The rebuild service has not yet been refactored.

[codecov]

Codecov Report

Merging #174 (20b0218) into master (e044386) will not change coverage.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##              master      #174   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity       770       778    +8     
===========================================
  Files            100       100           
  Lines           1996      2019   +23     
===========================================
+ Hits            1996      2019   +23     

Impacted Files	Coverage Δ
packages/framework/src/StaticPageBuilder.php	100.00% <ø> (ø)
...mework/src/Commands/HydeBuildStaticSiteCommand.php	100.00% <100.00%> (ø)
.../Internal/TransfersMediaAssetsForBuildCommands.php	100.00% <100.00%> (ø)
packages/framework/src/Modules/Routing/Route.php	100.00% <100.00%> (ø)
packages/framework/src/Modules/Routing/Router.php	100.00% <100.00%> (ø)
packages/framework/src/Services/BuildService.php	100.00% <100.00%> (ø)

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