build: Add support for unity builds

lib/libimhex/include/hex/api/plugin_manager.hpp

@@ -1,15 +1,10 @@
 #pragma once
 
-#include <hex/helpers/fs.hpp>
-
+#include <functional>
 #include <span>
 #include <string>
 
-#if defined(OS_WINDOWS)
-    #include <windows.h>
-#else
-    #include <dlfcn.h>
-#endif
+#include <wolv/io/fs.hpp>
 
 struct ImGuiContext;
 
@@ -65,11 +60,7 @@ namespace hex {
         [[nodiscard]] std::span<SubCommand> getSubCommands() const;
 
     private:
-        #if defined(OS_WINDOWS)
-            HMODULE m_handle = nullptr;
-        #else
-            void *m_handle = nullptr;
-        #endif
+        uintptr_t m_handle = 0;
         std::fs::path m_path;
 
         mutable bool m_initialized = false;

lib/libimhex/include/hex/data_processor/attribute.hpp

@@ -65,6 +65,8 @@ namespace hex::dp {
 
         friend class Node;
         void setParentNode(Node *node) { this->m_parentNode = node; }
+
+        static int s_idCounter;
     };
 
 }

lib/libimhex/include/hex/data_processor/link.hpp

@@ -17,6 +17,8 @@ namespace hex::dp {
     private:
         int m_id;
         int m_from, m_to;
+
+        static int s_idCounter;
     };
 
 }

lib/libimhex/include/hex/data_processor/node.hpp

@@ -87,6 +87,8 @@ namespace hex::dp {
         prv::Overlay *m_overlay = nullptr;
         ImVec2 m_position;
 
+        static int s_idCounter;
+
         Attribute& getAttribute(u32 index) {
             if (index >= this->getAttributes().size())
                 throw std::runtime_error("Attribute index out of bounds!");

lib/libimhex/include/hex/helpers/http_requests.hpp

@@ -10,14 +10,14 @@
 #include <wolv/io/file.hpp>
 #include <wolv/utils/guards.hpp>
 
+using curl_off_t = long long;
+
 #if defined(OS_WEB)
     #include <emscripten/fetch.h>
-
-    using curl_off_t = long;
-#else
-    #include <curl/curl.h>
 #endif
 
+typedef void CURL;
+
 namespace hex {
 
     class HttpRequest {