add original font files

prepare for using zlib instead of stb for compression
Unifont not included due to its size... I have plans to load it in a more size-efficient way

.gitignore

@@ -34,4 +34,5 @@ res/docpdf/manual.html
 res/docpdf/manual.pdf
 res/docpdf/.venv
 res/docpdf/htmldoc/
+res/fonts/compressed/
 res/furnace.appdata.xml

res/fonts/bake.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+mkdir -p compressed
+for i in *.ttf *.otf; do
+  echo "$i"
+  cat "$i" | zlib-flate -compress=9 > compressed/"$i".zl
+done

src/gui/settings.cpp

@@ -5704,7 +5704,9 @@ void FurnaceGUI::applyUISettings(bool updateFonts) {
 
     // two fallback fonts
     mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(font_liberationSans_compressed_data,font_liberationSans_compressed_size,MAX(1,e->getConfInt("mainFontSize",18)*dpiScale),&fc1,fontRange);
-    mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(font_unifont_compressed_data,font_unifont_compressed_size,MAX(1,e->getConfInt("mainFontSize",18)*dpiScale),&fc1,fontRange);
+    if (settings.loadJapanese || settings.loadChinese || settings.loadChineseTraditional || settings.loadKorean) {
+      mainFont=ImGui::GetIO().Fonts->AddFontFromMemoryCompressedTTF(font_unifont_compressed_data,font_unifont_compressed_size,MAX(1,e->getConfInt("mainFontSize",18)*dpiScale),&fc1,fontRange);
+    }
 
     ImFontConfig fc;
     fc.MergeMode=true;