add save and bundle pxl8 with game for standalone game distribution

pxl8.sh

@@ -173,7 +173,7 @@ timestamp() {
 update_fennel() {
     print_info "Fetching Fennel"
 
-    local version="1.5.3"
+    local version="1.6.0"
 
     if curl -sL --max-time 5 -o lib/fennel/fennel.lua "https://fennel-lang.org/downloads/fennel-${version}.lua" 2>/dev/null; then
         if [[ -f "lib/fennel/fennel.lua" ]] && [[ -s "lib/fennel/fennel.lua" ]]; then
@@ -217,11 +217,10 @@ update_luajit() {
     print_info "Updated LuaJIT (${version})"
 }
 
-
 update_miniz() {
     print_info "Fetching miniz"
 
-    local version="3.0.2"
+    local version="3.1.0"
 
     if curl -sL --max-time 5 -o /tmp/miniz.zip "https://github.com/richgel999/miniz/releases/download/${version}/miniz-${version}.zip" 2>/dev/null; then
         unzip -qjo /tmp/miniz.zip miniz.c miniz.h -d lib/miniz/ 2>/dev/null
@@ -344,6 +343,7 @@ case "$COMMAND" in
             src/pxl8_io.c
             src/pxl8_math.c
             src/pxl8_rec.c
+            src/pxl8_save.c
             src/pxl8_script.c
             src/pxl8_sdl3.c
             src/pxl8_tilemap.c