feat: Move hashes into plugin, merged in extra hashes plugin

plugins/hashes/include/content/views/view_hashes.hpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <hex/api/content_registry.hpp>
+
+#include <hex/ui/view.hpp>
+
+namespace hex::plugin::hashes {
+
+    class ViewHashes : public View::Window {
+    public:
+        explicit ViewHashes();
+        ~ViewHashes() override;
+
+        void drawContent() override;
+
+    private:
+        bool importHashes(prv::Provider *provider, const nlohmann::json &json);
+        bool exportHashes(prv::Provider *provider, nlohmann::json &json);
+
+    private:
+        ContentRegistry::Hashes::Hash *m_selectedHash = nullptr;
+        std::string m_newHashName;
+
+        PerProvider<std::vector<ContentRegistry::Hashes::Hash::Function>> m_hashFunctions;
+
+    };
+
+}