UI (#106)

* added localization options
//todo add all the strings

* broken push

* merge to UI

* broken push

* Alpha rebase complete, added asset loader for UI branch

* merge to UI

* UI now uses assetmanager

* added NL and EN for all strings currently in UI

* fix small merge error

* Removed no more needed files.

* JDK25

* Removed files no longer in use

* Removed need for manual typecast

* Added ability to load in BundledResource for localization

* Docs and easy font loading. Added interfaces for PreloadResource's

* added German, French, Spanish, Italian and Mandarin Chinese

---------

Co-authored-by: Ticho Hidding <tichohidding@gmail.com>
Co-authored-by: ramollia <@>

app/src/main/resources/assets/localization/localization_de.properties

@@ -0,0 +1,17 @@
+# Window title
+windowTitle=ISY Spiele-Auswahl
+
+# Main Menu buttons
+mainMenuSelectTicTacToe=Tic Tac Toe
+mainMenuSelectReversi=Reversi
+mainMenuSelectSudoku=Sudoku
+mainMenuSelectBattleship=Flottenman\u00F6ver
+mainMenuSelectOther=Andere
+mainMenuSelectCredits=Credits
+mainMenuSelectOptions=Optionen
+mainMenuSelectQuit=Beenden
+
+# Quit Menu text and buttons
+quitMenuTextSure=Bist du sicher?
+quitMenuButtonYes=Ja
+quitMenuButtonNo=Nein