Add support for context-aware print functions

Summary:
@public

Context-aware print functions are an internal Yoga feature that will be used for Yoga’s JNI code.

It will be possible to specify a context when calculating layout, which will be passed on to baseline and measure functions. This will be a private feature.

Reviewed By: SidharthGuglani

Differential Revision: D14131098

fbshipit-source-id: 7a9da307274ceccba9f7debba581b70c1ebf2c98

yoga/Yoga.cpp

@@ -3843,7 +3843,7 @@ bool YGLayoutNodeInternal(
           "%s%d.{[skipped] ",
           YGSpacer(gDepth),
           gDepth);
-      node->print();
+      node->print(layoutContext);
       Log::log(
           node,
           YGLogLevelVerbose,
@@ -3867,7 +3867,7 @@ bool YGLayoutNodeInternal(
           YGSpacer(gDepth),
           gDepth,
           needToVisitNode ? "*" : "");
-      node->print();
+      node->print(layoutContext);
       Log::log(
           node,
           YGLogLevelVerbose,
@@ -3903,7 +3903,7 @@ bool YGLayoutNodeInternal(
           YGSpacer(gDepth),
           gDepth,
           needToVisitNode ? "*" : "");
-      node->print();
+      node->print(layoutContext);
       Log::log(
           node,
           YGLogLevelVerbose,