✨ add keyword support 'true' and 'false'

true is now number 1.0

false is number 0.0

test/nasal_test.nas

@@ -51,6 +51,7 @@ z.funcc();                       #//f is called
 println(z.funcccall);            #//func(..){..}
 z2.listt2[3].hashh.funcc();      #//f is called
 println(y1[f2()][w]);            #//hello
+println(true,' ',false);         #//1 0
 
 
 # ValKmjolnir

test/scalar.nas

@@ -203,5 +203,5 @@ foreach(i;a){
 }
 println(runtime.argv());
 func(a,b,c,d="只有红茶可以吗"){
-    println(a,' ',b,' ',c,' ',d);
+    println(a,' ',b,' ',c,' ',d,' true: ',true,' false: ',false);
 }(c:1919810,b:514,a:114);