Added Git Export Feature

- Added import algorithm
- Added FromJsonX() methods to data models
- Added possibility to work with temp. database file
- Added export processor to handle export process & triggers
- Added something changed event e.g. as export trigger
- Added possibility to import a JSON export
- Updated Git icon

I18N Commander/UI WinForms/Resources/Icons.Designer.cs

@@ -213,9 +213,9 @@ namespace UI_WinForms.Resources {
         /// <summary>
         ///   Looks up a localized resource of type System.Drawing.Bitmap.
         /// </summary>
-        internal static System.Drawing.Bitmap icons8_git_svg {
+        internal static System.Drawing.Bitmap icons8_git {
             get {
-                object obj = ResourceManager.GetObject("icons8_git_svg", resourceCulture);
+                object obj = ResourceManager.GetObject("icons8_git", resourceCulture);
                 return ((System.Drawing.Bitmap)(obj));
             }
         }

I18N Commander/UI WinForms/Resources/Icons.resx

@@ -163,8 +163,8 @@
   <data name="icons8_folder_tree_512" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>icons8-folder-tree-512.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
-  <data name="icons8_git_svg" type="System.Resources.ResXFileRef, System.Windows.Forms">
-    <value>icons8-git.svg.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  <data name="icons8_git" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>icons8-git.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
   </data>
   <data name="icons8_increase_512" type="System.Resources.ResXFileRef, System.Windows.Forms">
     <value>icons8-increase-512.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>