feat: Refactor project structure and add new files

- Removed old style.css and added boilerplate.css for better cross-browser compatibility.
- Introduced browserconfig.xml for Microsoft tile support.
- Created impressum.php and index.php for main application pages.
- Added info.php for PHP info display.
- Implemented mett.js and mett.min.js for Mett calculation functionality.
- Included respond.min.js for media query support in older browsers.
- Recreated style.css with responsive design features.
- Added index.html as a landing page with a placeholder message.

dev/mett.js

@@ -0,0 +1,61 @@
+!!(function() {
+	var aUnits = {
+		'wenig': 30,
+		'normal': 40,
+		'viel': 50,
+		'sehr viel': 60
+	}
+	var iHunger = 40;
+	var iRolls = 1;
+	var $oRolls = $('#halfRolls');
+	var $oSelect = $('#hunger');
+    var aMeasures = ['G', 'KG', 'T'];
+
+	var inf = function(iIn) {
+		var sIn = String(Math.round(iIn));
+		var rGx = /(\d+)(\d{3})/;
+		while(rGx.test(sIn)) sIn = sIn.replace(rGx, '$1.$2');
+		return sIn;
+	}
+	var nf = function(fIn) {
+		var aIn = String(parseFloat(fIn).toFixed(2)).split('.');
+		var rGx = /(\d+)(\d{3})/;
+		while(rGx.test(aIn[0])) aIn[0] = aIn[0].replace(rGx, '$1.$2');
+		return aIn.join(',');
+	}
+    var calc = function() {
+        var fHack = iRolls * iHunger;
+        var sMeas = '';
+		var bDiv = false;
+        for(var i in aMeasures) {
+            sMeas = aMeasures[i];
+            if(fHack < 1000) break;
+            fHack /= 1000;
+			bDiv = true;
+        }
+		document.location.hash = 'r'+iRolls+'-m'+iHunger;
+        $('#out').text('Bestell '+(bDiv ? nf(fHack) : inf(fHack))+' '+sMeas+' Mett beim Metzger, bro.');
+    } 
+
+	var aMatch = document.location.hash.match(/r(\d+)-m(\d+)/);
+	if(aMatch) {
+		iRolls = parseInt(aMatch[1]);
+		iHunger = parseInt(aMatch[2]);
+		calc();
+	}
+
+	$oRolls.val(iRolls).on('change', function() {
+		iRolls = parseInt($oRolls.val());
+	});
+        
+    $.each(aUnits, function(name, e) {
+        $oSelect.append($('<option>').attr('value', e).prop('selected', e == iHunger).text(name));
+    }); 
+    
+	$oSelect.on('change', function() {
+		iHunger = $oSelect.val();
+	});
+
+	$('#calc').on('click', calc);
+
+})();