Build: Switch to CMake :^)

Closes https://github.com/SerenityOS/serenity/issues/2080

DevTools/HackStudio/CMakeLists.txt

@@ -0,0 +1,24 @@
+set(SOURCES
+    CursorTool.cpp
+    Debugger/BacktraceModel.cpp
+    Debugger/Debugger.cpp
+    Debugger/DebugInfoWidget.cpp
+    Debugger/VariablesModel.cpp
+    Editor.cpp
+    EditorWrapper.cpp
+    FindInFilesWidget.cpp
+    FormEditorWidget.cpp
+    FormWidget.cpp
+    Locator.cpp
+    main.cpp
+    ProcessStateWidget.cpp
+    Project.cpp
+    ProjectFile.cpp
+    TerminalWrapper.cpp
+    Tool.cpp
+    WidgetTool.cpp
+    WidgetTreeModel.cpp
+)
+
+serenity_bin(HackStudio)
+target_link_libraries(HackStudio LibWeb LibMarkdown LibGUI LibGfx LibCore LibVT LibDebug)