Reorganize source files into logical subdirectories

Co-authored-by: Hirek193 <23196899+Hirek193@users.noreply.github.com>

input/editormouseinput.h

@@ -0,0 +1,44 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include "command.h"
+
+class editormouse_input {
+
+public:
+// constructors
+    editormouse_input() = default;
+
+// methods
+    bool
+        init();
+    void
+        position( double const Horizontal, double const Vertical );
+    inline
+    glm::dvec2
+        position() const {
+            return m_cursorposition; }
+    void
+        button( int const Button, int const Action );
+    inline
+    int
+        button( int const Button ) const {
+            return m_buttons[ Button ]; }
+
+private:
+// members
+    command_relay m_relay;
+    bool m_pickmodepanning { false }; // indicates mouse is in view panning mode
+    glm::dvec2 m_cursorposition { 0.0 }; // stored last cursor position, used for panning
+    std::array<int, GLFW_MOUSE_BUTTON_LAST> m_buttons { GLFW_RELEASE };
+};
+
+//---------------------------------------------------------------------------