No more globals.hh in headers

This is needed to rearrange include order, but I also think it is a good
thing anyways, as we seek to reduce the use of global settings variables
over time.

src/libstore/build/derivation-building-goal.cc

@@ -12,6 +12,7 @@
 #include "nix/store/common-protocol.hh"
 #include "nix/store/common-protocol-impl.hh"
 #include "nix/store/local-store.hh" // TODO remove, along with remaining downcasts
+#include "nix/store/globals.hh"
 
 #include <fstream>
 #include <sys/types.h>

src/libstore/build/derivation-goal.cc

@@ -11,7 +11,7 @@
 #include "nix/util/compression.hh"
 #include "nix/store/common-protocol.hh"
 #include "nix/store/common-protocol-impl.hh" // Don't remove is actually needed
-#include "nix/store/local-store.hh"          // TODO remove, along with remaining downcasts
+#include "nix/store/globals.hh"
 
 #include <fstream>
 #include <sys/types.h>

src/libstore/build/drv-output-substitution-goal.cc

@@ -4,6 +4,7 @@
 #include "nix/store/build/substitution-goal.hh"
 #include "nix/util/callback.hh"
 #include "nix/store/store-open.hh"
+#include "nix/store/globals.hh"
 
 namespace nix {
 

src/libstore/build/goal.cc

@@ -1,5 +1,6 @@
 #include "nix/store/build/goal.hh"
 #include "nix/store/build/worker.hh"
+#include "nix/store/globals.hh"
 
 namespace nix {
 

src/libstore/build/substitution-goal.cc

@@ -4,6 +4,8 @@
 #include "nix/store/nar-info.hh"
 #include "nix/util/finally.hh"
 #include "nix/util/signals.hh"
+#include "nix/store/globals.hh"
+
 #include <coroutine>
 
 namespace nix {

src/libstore/build/worker.cc

@@ -10,6 +10,7 @@
 #  include "nix/store/build/hook-instance.hh"
 #endif
 #include "nix/util/signals.hh"
+#include "nix/store/globals.hh"
 
 namespace nix {