Implement shl, shr, or (#82)

WoofWare.PawPrint.Test/sourcesPure/TestShl.cs

@@ -0,0 +1,34 @@
+public class TestShl
+{
+    public static int Main(string[] args)
+    {
+        // Test 1: Shift Left with Int32
+        int value32 = 5;     // Binary: 0101
+        int shift32 = 2;
+        int result32 = value32 << shift32;  // Should be 20 (Binary: 10100)
+        if (result32 != 20) return 1;
+
+        // Test 2: Shift Left with Int64
+        long value64 = 7L;   // Binary: 0111
+        int shift64 = 3;
+        long result64 = value64 << shift64;  // Should be 56 (Binary: 111000)
+        if (result64 != 56L) return 2;
+
+        // Test 3: Shift by 0
+        int noShiftValue = 42;
+        int noShiftResult = noShiftValue << 0;
+        if (noShiftResult != 42) return 3;
+
+        // Test 4: Shift by 1
+        int singleShiftResult = noShiftValue << 1;
+        if (singleShiftResult != 84) return 4;
+
+        // Test 5: Shift with native int
+        nint nativeValue = 3;
+        int nativeShift = 4;
+        nint nativeResult = nativeValue << nativeShift;  // Should be 48
+        if (nativeResult != 48) return 5;
+
+        return 0;
+    }
+}