Replace most uses of Boost.{Filesystem,Process}

With the `ghc::filesystem` dependency from the previous commit. If we
can replace the rest of the Boost.Filesystem dependency then we can get
rid the one nasty runtime dependency we have, and it will make
implementing the chainloading simpler since can reuse more code without
bringing in Boost.

src/common/configuration.h

@@ -16,15 +16,12 @@
 
 #pragma once
 
-#ifdef __WINE__
-#include "../wine-host/boost-fix.h"
-#endif
-#include <boost/filesystem.hpp>
-
 #include <chrono>
 #include <optional>
 
-#include "bitsery/ext/boost-path.h"
+#include <ghc/filesystem.hpp>
+
+#include "bitsery/ext/ghc-path.h"
 #include "bitsery/ext/in-place-optional.h"
 
 /**
@@ -71,8 +68,8 @@ class Configuration {
      *
      * @see ../plugin/utils.h:load_config_for
      */
-    Configuration(const boost::filesystem::path& config_path,
-                  const boost::filesystem::path& yabridge_path);
+    Configuration(const ghc::filesystem::path& config_path,
+                  const ghc::filesystem::path& yabridge_path);
 
     /**
      * The name of the plugin group that should be used for the plugin this
@@ -92,7 +89,7 @@ class Configuration {
      * `<temporary_directory>/yabridge-plugin-output.log`, or it can be set to
      * an absolute path. (we don't try to expand tildes)
      */
-    std::optional<boost::filesystem::path> disable_pipes;
+    std::optional<ghc::filesystem::path> disable_pipes;
 
     /**
      * If this is set to `true`, then the after every resize we will move the
@@ -167,7 +164,7 @@ class Configuration {
     /**
      * The path to the configuration file that was parsed.
      */
-    std::optional<boost::filesystem::path> matched_file;
+    std::optional<ghc::filesystem::path> matched_file;
 
     /**
      * The matched glob pattern in the above configuration file.
@@ -199,7 +196,7 @@ class Configuration {
               [](S& s, auto& v) { s.text1b(v, 4096); });
 
         s.ext(disable_pipes, bitsery::ext::InPlaceOptional(),
-              [](S& s, auto& v) { s.ext(v, bitsery::ext::BoostPath{}); });
+              [](S& s, auto& v) { s.ext(v, bitsery::ext::GhcPath{}); });
         s.value1b(editor_coordinate_hack);
         s.value1b(editor_force_dnd);
         s.value1b(editor_xembed);
@@ -210,7 +207,7 @@ class Configuration {
         s.value1b(vst3_prefer_32bit);
 
         s.ext(matched_file, bitsery::ext::InPlaceOptional(),
-              [](S& s, auto& v) { s.ext(v, bitsery::ext::BoostPath{}); });
+              [](S& s, auto& v) { s.ext(v, bitsery::ext::GhcPath{}); });
         s.ext(matched_pattern, bitsery::ext::InPlaceOptional(),
               [](S& s, auto& v) { s.text1b(v, 4096); });