Allow lazy resolution of edge dimension values (#1453)

Summary:
X-link: https://github.com/facebook/react-native/pull/41347

Pull Request resolved: https://github.com/facebook/yoga/pull/1453

This follows the previous patterns used for `Gutters` and `Dimension`, where we hide CompactValue array implementation from `yoga::Style` callers.

This allows a single read of a style to only need access to the resolved values of a single edge, vs all edges. This is cheap now because the interface is the representation, but gets expensive if `StyleValuePool` is the actual implementation.

This prevents us from needing to resolve nine dimensions, in order to read a single value like `marginLeft`. Doing this, in the new style, also lets us remove `IdxRef` from the API.

We unroll the structure dependent parts in the props parsing code, for something more verbose, but also a bit clearer.

Changelog: [Internal]

Reviewed By: joevilches

Differential Revision: D50998164

fbshipit-source-id: 248396f9587e29d62cde05ae7512d8194f60c809

yoga/debug/AssertFatal.cpp

@@ -7,8 +7,10 @@
 
 #include <stdexcept>
 
+#include <yoga/config/Config.h>
 #include <yoga/debug/AssertFatal.h>
 #include <yoga/debug/Log.h>
+#include <yoga/node/Node.h>
 
 namespace facebook::yoga {